Medium
Offset lithograph
How an offset lithograph is made
Most printmaking techniques print directly from the plate or block. Offset lithography adds a step: the image is transferred to an intermediate surface before it reaches the sheet.12
It is a photomechanical process. The image is reproduced mechanically in ink, as colored dots that can be seen under magnification. The Greenwich Workshop, which published Bev Doolittle, describes offset lithography as a photomechanical or digital printing technique.324
How to tell one from an original print
Look through a magnifying glass. Under low magnification an offset lithograph shows a regular rosette pattern of ink dots across the image, and the ink looks soft-edged, as if it has sunk into the paper.2
An Antiques Roadshow print appraiser gives the same test: a uniform pattern of dots means a reproduction. He adds that it is a general guide and does not catch every case.5
In a hand-made lithograph the artist draws directly on the stone with a greasy medium, and in a woodcut the artist makes the image on the block. An offset lithograph of a painting is something else: a reproduction of an image made in a different medium, which is how California’s fine-print law describes it.678
Signed and numbered
Publishers sold these prints as limited editions. The Greenwich Workshop says each print in its editions is signed by the artist and then consecutively numbered, and that a certificate of authenticity accompanies each edition.49
The number is written like a fraction. The figure on the right is the size of the edition; the figure on the left is that print’s own number.6
The signature deserves a second look. Under California law a print counts as signed only if the artist autographed it by hand after it was produced; a signature that is only in the plate does not count. A print can carry both: an auction listing for one copy of Doolittle’s Sacred Ground records a signature and a second signature in the plate.1011
A poster is a different object. The Greenwich Workshop describes posters as generally mass produced with commercial inks and papers.4
What it means for value
A library preservation guide notes that when a print is identified as a photolithograph, it can be assumed that many copies were produced. The Print Council of America adds that photomechanical reproductions cost less to produce than hand-made prints.27
Edition sizes show the range. Bev Doolittle’s Woodland Encounter of 1981 was an edition of 1,500. Her Sacred Ground of 1989 was an edition of 69,996.1213
The table shows what prints by the eleven artists on this site sold for on eBay in our latest snapshot. What is my print worth? explains what lies behind the figures.
| Artist | Sold | Low | Median | High |
|---|---|---|---|---|
| Sabra Field | 33 | $273 | $995 | $19,870 |
| Gordon Mortensen | 14 | $100 | $750 | $1,500 |
| Bev Doolittle | 314 | $1 | $135 | $4,700 |
| Terry Redlin | 278 | $3 | $93 | $2,240 |
| Robert Bateman | 104 | $7 | $125 | $1,500 |
| Carl Brenders | 46 | $10 | $125 | $671 |
| Ray Harm | 92 | $10 | $63 | $1,200 |
| Les Kouba | 46 | $8 | $55 | $1,950 |
| David Maass | 37 | $15 | $50 | $360 |
| Stephen Lyman | 28 | $20 | $200 | $3,395 |
| P. Buckley Moss | 401 | $6 | $65 | $1,500 |
Artists on this site working in offset lithograph
- Bev Doolittle9 print pages
- Terry Redlin10 print pages
- Ray Harm9 print pages
- Robert Bateman9 print pages
- Stephen Lyman7 print pages
- Carl Brenders10 print pages
Offset lithograph print pages
Offset lithograph prints on eBay now
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For sale now on eBay (affiliate link to eBay) Recently sold on eBay (affiliate link to eBay)
Sources
- Offset lithography (art terms). Tate.
- Photomechanical Prints (Preservation Self-Assessment Program, Collection ID Guide). University of Illinois at Urbana-Champaign Library.
- Glossary of printmaking terms. Waddington's Auctioneers and Appraisers.
- FAQ. The Greenwich Workshop.
- Prints & Renoir 'Le Chapeau Epingle' Etching (appraisal transcript, appraiser Todd Weyman, Louisville). PBS Antiques Roadshow (GBH), 2007.
- Collecting guide: key things to know about Prints and Multiples. Christie's, 30 September 2026.
- What is an Original Print?. Print Council of America.
- California Civil Code section 1744 (information required in the certificate of authenticity). California Legislative Information.
- About Us. The Greenwich Workshop.
- California Civil Code section 1740 (Title 1.2, Sale of Fine Prints: definitions). California Legislative Information.
- Bev Doolittle Offset Lithograph "Sacred Ground," 1989. EBTH (ebth.com) auction listing.
- Bev Doolittle presents "Woodland Encounter". Art & Nature Gallery.
- Sacred Ground. The Greenwich Workshop.
- Art Country Canada - BEV DOOLITTLE Limited Edition Print and Giclee Canvas Art Collection. Art Country Canada / Rocky Mountain Art Gallery (Canmore, Alberta).
- "Hide And Seek" Print Suite by Bev Doolittle. Art & Nature Gallery.
- Portfolio of Bev Doolittle Offset Lithographs "Hide and Seek," 1990. EBTH (ebth.com) auction listing.
- BEV DOOLITTLE Hide and Seek. Art Country Canada.
- "The Forest Has Eyes" by Bev Doolittle. Art & Nature Gallery.
- BEV DOOLITTLE The Forest Has Eyes. Art Country Canada.
- Collectors Respond Strongly to Return of Bev Doolittle to Limited Edition Art World with Beyond Negotiations Her First New Painting in Eight Years. The Greenwich Workshop (press release), 17 May 2007.
- "Sacred Ground" by Bev Doolittle. Art & Nature Gallery.
- "Three More For Breakfast" by Bev Doolittle. Art & Nature Gallery.
- "Unknown Presence" by Bev Doolittle. Art & Nature Gallery.
- Bev Doolittle, Season of the Eagle. RoGallery.
- BEV DOOLITTLE Season of the Eagle. Art Country Canada.
- Bev Doolitle Offset Lithograph "Season of the Eagle," 1987. EBTH (ebth.com) auction listing.
- "Season Of The Eagle" by Bev Doolittle. Art & Nature Gallery.
- "Let My Spirit Soar" by Bev Doolittle. Art & Nature Gallery.
- BEV DOOLITTLE Let My Spirit Soar. Art Country Canada.
- "Sacred Circle" by Bev Doolittle. Art & Nature Gallery.
- BEV DOOLITTLE Sacred Circle. Art Country Canada.
- Evening with Friends. Redlin Art Center.
- Best Friends. Redlin Art Center.
- Sharing Season I. Redlin Art Center.
- Sharing Season II. Redlin Art Center.
- Evening Solitude. Redlin Art Center.
- Twilight Time. Redlin Art Center.
- Winter Wonderland. Redlin Art Center.
- Terry Redlin Offset Lithograph “Winter Wonderland,” 1992. EBTH (online estate auction).
- Heading Home. Redlin Art Center.
- Shoreline Neighbors. Redlin Art Center.
- Morning Surprise. Redlin Art Center.
- Sunset Harvest. Redlin Art Center.
- Yellow Throat. RoGallery (dealer).
- Yellow-breasted Chat. RoGallery (dealer).
- Ray Harm Offset Lithograph "Yellow-Throat," Late 20th Century. EBTH (online estate auction).
- Ray Harm print page: Rufous-sided Towhee. rayharm.com (the artist’s official site).
- Ray Harm Offset Lithographs (Goldfinch, Rufous-Sided Towhee, California Quail). EBTH (online estate auction).
- Ray Harm print page: Red Winged Blackbird. rayharm.com (the artist’s official site).
- Ray Harm print page: Yellow Breasted Chat. rayharm.com (the artist’s official site).
- Ray Harm print page: Evening Grosbeaks. rayharm.com (the artist’s official site).
- White-throated Sparrow. RoGallery (dealer).
- California Quail. Eastern Kentucky University Libraries, Digital Collections.
- Ray Harm print page: Summer Wildflower set of 6. rayharm.com (the artist’s official site).
- Discovery Art, lot 332: Robert Bateman, Pride of Autumn – Canada Goose. Waddington’s (auction), 17 November 2022.
- Robert Bateman: Pride of Autumn - Canada Goose. Art Country Canada (dealer, Canmore, Alberta).
- Pride of Autumn - Canada Goose. robertbateman.ca (the artist’s official site).
- Midnight - Black Wolf. robertbateman.ca (the artist’s official site).
- Robert Bateman Presents "Midnight - Black Wolf". Art & Nature (dealer, Kirkland, Quebec).
- The Air, the Forest and the Watch. robertbateman.ca (the artist’s official site).
- The Air, the Forest and the Watch: Premier Edition original lithograph. robertbateman.ca (the artist’s official site).
- High Kingdom - Snow Leopard. robertbateman.ca (the artist’s official site).
- Siberian Tiger. robertbateman.ca (the artist’s official site).
- Through the Birches - White-tailed Deer. robertbateman.ca (the artist’s official site).
- Ready for the Hunt - Snowy Owl. robertbateman.ca (the artist’s official site).
- Giant Panda. robertbateman.ca (the artist’s official site).
- Shadow of the Rainforest - Black Jaguar. robertbateman.ca (the artist’s official site).
- Offset Lithograph A Walk In the Woods after Stephen Lyman. EBTH (online estate auction).
- Carl Brenders Limited Edition Offset Lithograph "Den Mother - Wolf Family" | EBTH. EBTH (online estate auction).
- Bev Doolittle: Limited Edition Prints, by Myrna Zanetell. Southwest Art Magazine, June 1997.