Full Plate + Painted Tintype ID'd Brothers in Military Cadet Uniforms / Folk Art collectible but I don't know what

but I don't know what it's called

with 77 total gem tintypes

Shipping: First Class (flat mailer

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Full Plate + Painted Tintype ID'd Brothers in Military Cadet Uniforms / Folk Art collectible but I don't know whatFull plate, original tintype of two brothers, identified as Sam and Grant Fuller sitting side by side. Their matching coats have a bit of a military look to them perhaps they were some sort of boarding or military cadet uniform. On a piece of paper taped to the back, in period writing:"Sam Fuller Grant FullerSons of Samuel R. Fuller"Size: Full Plate+++ 9" x 7". Very good condition overall with a medium bend in the lower left, and lighter,