Red Jacket threads a field of Antarctic ice under shortened sail, August 1854. She ran Liverpool to New York in 13 days on her maiden passage - the fastest sailing crossing ever recorded.

Maker: Currier & Ives (after J. B. Smith & Son, on stone by C. Parsons)
Date: 1855
Medium of the original: Hand-colored lithograph
Original held by: The Metropolitan Museum of Art
Credit: The Metropolitan Museum of Art · via Wikimedia Commons
Rights: Public domain, verified
Catalogue number: PA-01897

As chosen: 24 x 18 in, art print, classic frame
Picture	24 x 18 in
Outside size	25.6 x 19.6 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
10 x 8 in	376	Excellent	Trimmed 5.8%
14 x 11 in	273	Excellent	Trimmed 4.1%
16 x 12 in	250	Excellent	Trimmed 0.4%
20 x 16 in	188	Good	Trimmed 5.8%
24 x 18 in	166	Good	Trimmed 0.4%

Sizes withheld
Size	Why
12 x 8 in	Wrong shape: a 11% crop
18 x 12 in	Wrong shape: a 11% crop
24 x 16 in	Wrong shape: a 11% crop
30 x 20 in	Wrong shape: a 11% crop
30 x 24 in	125 dpi; a historical scan is never enlarged
36 x 24 in	Wrong shape: a 11% crop
40 x 30 in	100 dpi; a historical scan is never enlarged
48 x 36 in	83 dpi; a historical scan is never enlarged
60 x 40 in	Wrong shape: a 11% crop