I just thought this was an interesting one, combining an array of options for tombstone and grave markers, cut and pasted from a catalog I guess, along with hand-written notes detailing dimensions and prices. I'd guess perhaps this came from a funeral home, where it was pulled out to share with clients. I've found a few mentions of the Producer's Marble Co. whose designs are featured here, which seems to have been based I n Vermont and active in the 1880s.

10" x 8 1/8", double sided, with a fold line down the center. Good antique condition.