Ambrotype
A280
Size |
1/4 |
"A. P. Critchlow & Co., manufacturers of Daguerreotype Cases.
A. P. C. & Co. are the original inventors of the composition for the Union
Case (so called) including all the various shades of color and fineness of
texture peculiar to their manufacture and of the embracing riveted hinges,
thus securing them from breaking out as do others that are inserted with or
without a metal brace. Hinge patented Oct 14 1856
& April 21 1857."