Block numbered in two places: 6185., Image of a large, ornate building, possibly a train station or a convention hall; several figures stand in the street in the foreground., Back of block also engraved (for portion of map of Kansas)., “N.J. Wemmer 215 Pear St. Phila.” – Back of block in two places. Nelson J. Wemmer is listed at this address in Philadelphia city directories from 1861 to 1876.
Block numbered in one place: 3476, also 620 on small adhesive label on back of block., Image of a hand inserting a rectangular envelope into a slot with a sign that says “Letter Box”; the part of the block where the letter should be is cut out of the block completely from front to back, suggesting that there may be multiple replaceable blocks that fit into this block for different uses.
