Thurston cradles a skull from which green smoke rises into a swirl of apparitions — a ghostly woman, an owl, floating trumpets and hands, red imps. His flagship séance poster, inheriting Kellar’s spirit-conjuring brand and posing the era’s Spiritualist question straight to the audience.

Maker: Strobridge Litho. Co. (Cincinnati & New York)
Medium of the original: Colour lithograph poster
Original held by: Library of Congress, Prints & Photographs Division
Credit: Library of Congress, Prints & Photographs Division
Rights: Cleared for print
Catalogue number: PA-02077

As chosen: 16 x 24 in, art print, classic frame
Picture	16 x 24 in
Outside size	17.6 x 25.6 in
Depth	0.9 in (22 mm)
Weight	[[REAL PROOF NEEDED: shipped weight per size and frame]]
Hanging	[[REAL PROOF NEEDED: hanging hardware Prodigi fits to this frame]]
Material	Enhanced matte art paper, 200 gsm; acrylic glazing
Made in	Charlotte, North Carolina, by Prodigi

Before a size goes on sale, the file is measured against it: pixels per inch at that size, how much of the picture a crop would lose, tone and sharpness. A size that fails is not offered, so there is nothing to choose wrong.

How the print check works

Sizes offered
Size	dpi	Grade	How it fits
8 x 12 in	403	Excellent	Trimmed 2.6%
12 x 18 in	269	Excellent	Trimmed 2.6%
16 x 24 in	201	Excellent	Trimmed 2.6%
20 x 30 in	161	Good	Trimmed 2.6%

Sizes withheld
Size	Why
8 x 10 in	Wrong shape: a 19% crop
11 x 14 in	Wrong shape: a 17% crop
12 x 16 in	Wrong shape: a 13% crop
16 x 20 in	Wrong shape: a 19% crop
18 x 24 in	Wrong shape: a 13% crop
24 x 30 in	Wrong shape: a 19% crop
24 x 36 in	134 dpi; a historical scan is never enlarged
30 x 40 in	Wrong shape: a 13% crop
36 x 48 in	Wrong shape: a 13% crop
40 x 60 in	80 dpi; a historical scan is never enlarged

Scanned: 2026-10-07
Master file: 3,230 x 4,976 px, srgb, sRGB
Tone: Darks 14, lights 212 of 255; 0.1% clipped light, 0% clipped dark
Colour: 0% vivid
Sharpness: 2.21