This April, as of March 28^th, 99 sales with more than 25,000 lots are scheduled.  Dates occasionally change, others are added and a few delayed but the events as shown here are substantially what to expect.  The auction calendar, once the month is underway is always being updated.  This is the link to the most up-to-date schedule.

Wed. April 3^rd     Aguttes.  Prints and Photographs [20651].  9 lots

                                    Neret – Minet  & Tessier.  Books and Autographs [15831].  233 lots

                                    Old World Auctions.  The Grace Collection of Important Antique Maps and Prints [144].

Thurs. April 4^th          Bloomsbury Auctions.  Books, Manuscripts, Prints, Drawings and other Artworks [35999].

                                    Christies.  Photographs and Modernist Masterworks [2767].

                                    Dorothy Sloan Rare Books.  Americana:  Texas, the West, Mexico & the Borderlands [23].  614 lots

                                    Freeman’s [Samuel T. Freeman & Co.].  Books, Manuscripts and Maps [1454].
Heritage Auctions [Ha.com].  Rare Books online bidding ending today [201314]

Fri. April 5^th                Alde.  Important Music Sale [20984]

                                    Christies.  Photographs and Modernist Masterworks [2691]..

                                    Dorothy Sloan Rare Books.  Americana:  Texas, the West, Mexico & the Borderlands [23].  614 lots

                                    Eldred’s.  Prints [763].

                                    Freeman’s [Samuel T. Freeman & Co.].  Posters and Other Graphics [1455].

                                    Keys Fine Arts Auctioneers.  Prints [1104].

                                    Piasa.  Ancient and Modern Prints [20618].

                                    Sothebys.  The Modern Image:  Photographs from an Important American Collection [N09027].

Sat.  April 6^th              Eldred’s.  Prints [763].

                                    Sothebys.  Photographs [N08979].
Stair Auctioneers & Appraisers.  Books and Prints [40613]

Sun. April 7^th              National Book Auctions.  Books, Prints, Ephemera [40713].

Mon. April 8^th             Artcurial Briest-Le Fur-Poulain-F. Tajan.  Weapons and Historical Memories [20892].

                                    Doyle New York.  Photographs [40813].

                                    Sothebys.  Collection de Nicholas Landau et Jacqueline Goldman [PF1336].

Tues. April 9^th            Christies.  Books and Manuscripts [2706].

                                    Piasa.  Ancient and Modern Books [20921].

                                      Sothebys.  Collection de Nicholas Landau et Jacqueline Goldman [PF1336].

Wed. April 10^th          Bonhams.  Roy David’s Collection:  Part III:  Poetry [20922]

                                    Christies.  Books and Manuscripts [2706].

                                    Christies.  Prints [8623].

                                    Christies.  Books and Manuscripts [2806].

                                    Dominic Winter Book Auctions.  Printed Books and Maps [41013].

                                    Heritage Auctions [Ha.com].  Rare Books [6094].  630 items.

                                    Leslie Hindman Auctioneers.  Fine Books and Manuscripts [239].

Thurs. April 11^th        Bloomsbury Auctions.  Horology and Science Books [36036].

                                    Dominic Winter Book Auctions.  Private Collection of Mountaineering Books [41113].

                                    Heritage Auctions [HA.com].  Historical Manuscripts [6093].

                                    Heritage Auctions [Ha.com].  Illustration Art [5126].
Heritage Auctions [Ha.com].  Historical Manuscripts [6093].

                                    PBA Galleries.  South Sale:  The Library of Dr. Richard Topel, Part I [504].

                                    Swann Galleries, Inc.  Fine Books, Including Incunabula [2309].

                                   

Fri. April 12^th             Dominic Winter Book Auctions.  Private Collection of Mountaineering Books [41113].

                                    Heritage Auctions [Ha.com].  Illustration Art [5126].

Sat. April 13^th             Alde.  Beautiful and Modern Bindings [20985].

Sun. April 14^th           Bonhams.  Books, Prints [20943].

Mon. April 15^th          Alde.  Letters and Manuscripts [20986].

                                    Bruun Rasmussen.  Books [1316].

Tues. April 16^th          Bonhams.  Grosvenor School and Avant-Garde Print-making [20736].

                                    H. A. Stargardt Autographenhandlung.  Autographs [41613].

                                    Rupert Toovey and Co.  Ephemera [1119].

                                    Swann Galleries, Inc.  Printed & Manuscript Americana [2310].

Wed. April 17^th          De Baecque & Associes.  Photographs [20967].

                                    Galerie Bassenge.  Books [101a].

                                    J. A. Stargardt Autographenhandlung.  Autographs [41613].                     Kapandji Morhange.  Engravings [15601].

                                    RR Auction.  Autographs [406].

                                    Rupert Toovey and Co.  Prints [1118].

                                    Sothebys.  Charity sale – Prints [PF1335].

Thurs. April 18^th        Ader.  Books of Photographs [20830].

                                    Bloomsbury Auctions.  Bibliophile Books [36041].

                                    Bruun Rasmussen.  Books, Prints [1316].

                                    De Baecque & Associes.  Ancient and Modern Books [20968].

                                    Galerie Bassenge.  Books [101a].

                                    Heritage Auctions [HA.com].  Space Exploration [6095].
Heritage Auctions [HA.com].  Rare Books internet bidding ending today [201316].

                                    Swann Galleries, Inc.  Printed and Manuscript Americana [2310].

Fri. April 19^th             De Baecque & Associes.  Photography [20967].

                                    Galerie Bassenge.  Books [101a].

                                    Heritage Auctions [HA.com].  America and Political Memorabilia [6096].

                                    Ketterer Kunst / F. Doerling.  Modern Prints [403].

                                    Kiefer – Buch- und Kunstauktionen.  Books, Prints [84].

Sat. April 20^th             Artcurial Briest-Le Fur-Poulain-F. Tajan.  Library of an Amateur [20882].

                                    Galerie Bessange.  Books [101a].

                                    Ketterer Kunst / F. Doerling.  Post-War / Contemporary Prints [404].

                                    Kiefer – Buch-und Kunstauktionen.  Books, Prints [84].

Mon. April 22^nd          Sothebys.  Books and Manuscripts [PF1303].

Tues.  April 23^rd         Doyle New York.   Rare Books and Autographs [254].

                                    Sothebys.  Travel, Atlases, Maps and Natural History [L13401].

Wed. April 24^th          Christies.  Travel, Science and  Natural History [8668].

                                    Dorotheum.  Prints before 1900 [41413].

                                    Kapandji Morhange.  Ancient Books and Autographs [1560]

                                    Lyon and Turnbull Ltd.  Rare Books, Maps and Manuscripts [378].

Thurs. April 25^th        AntiquarianAuctions.com.  Rare Books online sale ending today

                                    Bloomsbury Auctions.  20^th Century Prints [42513].

                                    Christies.  Collection Denise Levy [3573].
Heritage Auctions [Ha.com].  Internet bidding ending today.

                                    PBA Galleries.  Travel & Exploration, Cartography & Americana from the Library of Glen McLaughlin [with additions] [505].

                                    RR Auctions.  Autographs [407].

Fri. April 26^th             Dorotheum.  Art Photography [42613].

Sat. April 27^th             Knotty Pine Auction Service.  Books [42713].

                                    Morton Casa de Subastas.  Books [669].

Mon. April 29^th          Christies.  Books and Manuscripts [3548].

                                    Doyle New York.  Old Master, Modern and Contemporary Prints [261].

                                    Minerva Auctions Roma.  Photography [ROMA-88].  

                                    Sothebys.  A Treasured Legacy:  The Michael and Judy Steinhardt Judaica [N08961].

                                    Sothebys.  Bibliotheque des ducs de Luynes, Chateau de Dampierre – First Part [PF-1323].

Tues.  April 30^th         Bonhams.  Books [20688].

                                    Bonhams.  Prints [20911].

                                    Christies.  Prints and Multiples [2697].

                                    Sothebys.  Bibliotheque des ducs de Luynes, Chateau de Dampierre – First Part [PF-1323]

                                    Sothebys.  Collections [L13311].

Search all posted lots in the Upcoming Auctions section of AE