Seller: margharsh (4,157) 100%, Location: Phoenix, Arizona, Ships to: US, Item: 391634328503 This is identified as a Supplement to the Scientific American-Architects and Builders Edition, March 1892 either a lithograph or a chromo-lithograph framed of a floor plan. I have a total of three of these pieces listed purchased with other items at an estate sell. The frames are older/vintage frames in all of the pieces. The complete glass framed piece measures 21 1/2 inches by 16 inches. The frame on this piece shows more wear than the other two pieces I have listed. I do not know much else about the three pictures. Nonsmoking and no pets. Free shipping and tracking, always. Thank you for your interest.