Size
Date
Country
Artist
Sitter
Case
Mark

1/6
ca 1862
USA
Unknown
Unknown
Full thermoplastic case
No hallmark

Notes

Thermoplastic case B 2-68 (C) on the front and B 3-146R (C) on the back.

"Littlefield, Parsons & Co., Manufacturers of Daguerreotype Cases. L. P. & Co. are the sole Proprietors and only legal Manufacturers of UNION CASES, with the Embracing Riveted Hinge, Patented Oct. 14, 1856 and April 21, 1857."