[Test target]
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Transparency
[Test target]
ca. 1905
Dye imbibition transparency
Overall: 3 1/8 × 4 3/16 in. (8 × 10.6 cm)
Museum accession
Inscriptions Printed on plate on verso to be viewed from the recto, BR: The Chapman Jones \ PLATE TESTER \ Sole Makers \ Sanger Shepard & Co \ 5, 6, & 7 Gray's Inn Passage \ Red Lion Street \ HOLBORN WC.
Printed on plate on verso to be viewed from the recto in squares: [numbers 1-25]
Printed on plate on verso to be viewed from the recto in squares: [numbers 1-25]
