I haven't found an exact match for this one out there so am not sure what volume it came from, but clearly it is quite an old engraving, late 18th/early 19th c. I believe, on laid paper. The text details 76 exterior and 53 interior muscles of the body corresponding to numbers on the beautifully rendered bodies, with a enlarged detail of a "simple regular muscle" at top right. I especially love the face on our man at right. It appears this was cut down along the bottom from a larger bookplate, probably twice its size.
7 11/16" t x 7 5/16 and in very good antique condition. Blank on reverse.