Really nice 1/6th plate uncased tintype of a diaper clad baby with a photographers advertising card on the back reading:
From French & Sawyer’s New Photograph Gallery
Bridgeman’s Block, East Side of Central Square, Keene, N.H.
Card Photographs, Ambrotypes, &C. of every size, made from life or copied from other pictures.
J.A. French D.H. Sawyer