During the very late 19th century and all through the 20th and 21st century -- up until quite recently-- almost all printing was done by photo mechanical means. During this era increasingly complex and high speed presses and film based cameras were developed to print books, newspapers, magazines and everything else in bigger, faster and cheaper press runs.
On the graphic side the half tone dominated the reproduction of images. Half tones are an ingenious way of simulating graduations of tone by means of dots. The dots are the giveaway that it’s printed by photo offset.
When you see the dots in an image you know right away the image is almost certainly 20th century and it’s made by a photo mechanical method.
Caveat
There are lots of quality small press run books printed by photo offset and there is some exceptionally high quality printing of photographs and art work done by this method using half tones. It doesn’t mean they’re not nice books, and it doesn’t mean they are not rare, scarce and valuable books, prints or maps. But if you see the dots it does mean that they may well be modern reproductions of older works.
Screen Printing
You’re not going to see much screen printing of books, but you may see some screen printing of posters and ephemera. Most especially you’ll see sought after screen printing during the mid-20th century when a lot of the posters, t-shirts and other items associated with popular culture were made by this process.
Some of these things have become expensive and hard-to-find. If you ripped a vivid poster for a Grateful Dead concert off a telephone pole in San Francisco or waved a printed banner during a Viet Nam era anti-war rally, chances are good it was a screen print. Screen printing in the mid-20th century was often short run. . It was the technique of choice for the underground because it was cheap, easy and most often done in the garage after hours. More recent screen printing is an entirely different animal. It can be done in vast quantities and on practically any surface.
Gonnelli Auction 59 Antique prints, paintings and maps May 20th 2025
Gonnelli: Pietro Aquila, Psyche and Proserpina,1690. Starting price 140€
Gonnelli: Jacques Gamelin, Memento homo quia pulvis es et in pulverem reverteris, 1779. Starting price 300€
Gonnelli: Giorgio Ghisi, The final Judgement, 1680. Starting price 480€
Gonnelli Auction 59 Antique prints, paintings and maps May 20th 2025
Gonnelli Goya y Lucientes Francisco, Los Proverbios.1877. Starting price 1000 €
Gonnelli: Domenico Peruzzini, Long bearded old man, 1660. Starting price 2200€
Gonnelli: Enea Vico, Leda and the Swan,1542. Starting price 140€
Gonnelli Auction 59 Antique prints, paintings and maps May 20th 2025
Gonnelli: Andrea Del Sarto [school of], San Giovanni Battista, 1570. Starting price 25000€
Gonnelli: Carlo Maratta, Virgin Mary and Jesus, 1660. Starting Price 1200€
Gonnelli: Louis Brion de La Tour, Sphére de Copernic Sphere de Ptolemée / Le Systême de Ptolemée. Le Systême de Ticho-Brahe…, 1766. Starting price 180€
Gonnelli Auction 59 Antique prints, paintings and maps May 20th 2025
Gonnelli: Marc’Antonio Dal Re, Ville di Delizia o Siano Palaggi Camparecci nello Stato di Milano Divise in Sei Tomi Con espressevi le Piante…, Tomo Primo, 1726. Starting price 7000€
Gonnelli: Katsushika Hokusai, Bird on a branch, 1843. Starting price 100€
Ketterer Rare Books Auction May 26th
Ketterer, May 26: Th. McKenney & J. Hall, History of the Indian tribes of North America, 1836-1844. Est: €50,000
Ketterer, May 26:Biblia latina vulgata, manuscript on thin parchment, around 1250. Est: €70,000
Ketterer, May 26: M. Beckmann, Fanferlieschen Schönefüßchen, 1924. Est: €10,000
Ketterer Rare Books Auction May 26th
Ketterer, May 26: A. Ortelius, Theatrum orbis terrarum, 1574. Est: €50,000
Ketterer, May 26: M. S. Merian, Eurcarum ortus, alimentum et paradoxa metamorphosis, 1717-18. Est: €6,000
Ketterer, May 26:PAN, 9 volumes, 1895-1900. Est: €12,000
Ketterer Rare Books Auction May 26th
Ketterer, May 26: Breviarium Romanum, Latin manuscript, 1474. Est: €15,000
Ketterer, May 26: Quran manuscript from the Saadian period, Maghreb, 16th century. Est: €10,000
Ketterer, May 26: E. Hemingway, The old man and the sea, 1952. First edition in first issue jacket. Presentation copy. Est: €3,000
Ketterer Rare Books Auction May 26th
Ketterer, May 26: Flavius Vegetius Renatus, De re militari libri quatuor, 1553. Est: €3,000
Ketterer, May 26: K. Marx, Das Kapital, 1867. Est: €30,000
Ketterer, May 26: Brassaï, Transmutations, 1967. Est: €6,000
Leland Little, May 21: Signed Artist Proof of the Monumental G.O.A.T.: A Tribute to Muhammad Ali.
Leland Little, May 21: Assorted Rare Publications Related to H.P. Lovecraft, Including The Recluse Signed by Vincent Starrett.
Leland Little, May 21: Two Issues of The Vagrant, Including the First Appearance of H.P. Lovecraft's "Dagon" in Number Eleven.
Leland Little, May 21: Rare First Printing of Anne of Green Gables, With ALS from the Author.
Leland Little, May 21: First Edition of Hemingway's The Old Man and the Sea, In First Issue Jacket.
Leland Little, May 21: The Limited Paumanok Edition of The Complete Writings of Walt Whitman.
Leland Little, May 21: Beautifully Bound Limited Flaubert Edition of The Works of Guy de Maupassant.
Leland Little, May 21: First Edition of Bonaparte's Celebrated American Ornithology, With Spectacular Hand-Colored Plates.
Leland Little, May 21: A Rare Complete Set of Jardine's The Naturalist's Library, With Hand-Colored Plates.
Leland Little, May 21: Invitation to the Lincoln-Johnson National Inaugural Ball, March 4th, 1865.
Leland Little, May 21: A Scarce Inscribed First Edition of James Baldwin's Nobody Knows My Name.
Leland Little, May 21: Picasso's Le Goût du Bonheur, Limited Edition.
Sotheby's Sell Your Fine Books & Manuscripts
Sotheby’s: The Shem Tov Bible, 1312 | A Masterpiece from the Golden Age of Spain. Sold: 6,960,000 USD
Sotheby’s: Ten Commandments Tablet, 300-800 CE | One of humanity's earliest and most enduring moral codes. Sold: 5,040,000 USD
Sotheby’s: William Blake | Songs of Innocence and of Experience. Sold: 4,320,000 USD
Sotheby’s: The Declaration of Independence | The Holt printing, the only copy in private hands. Sold: 3,360,000 USD
Sotheby's Sell Your Fine Books & Manuscripts
Sotheby’s: Thomas Taylor | The original cover art for Harry Potter and the Philosopher's Stone. Sold: 1,920,000 USD
Sotheby’s: Machiavelli | Il Principe, a previously unrecorded copy of the book where modern political thought began. Sold: 576,000 GBP
Sotheby’s: Leonardo da Vinci | Trattato della pittura, ca. 1639, a very fine pre-publication manuscript. Sold: 381,000 GBP
Sotheby’s: Henri Matisse | Jazz, Paris 1947, the complete portfolio. Sold: 312,000 EUR