This section is for cards that have multiple subjects or items where the location is unknown. I am also including advertising cards here since it is my thought that I do not have enough of them to warrant its own category at this time.

Compilation of the train crossings before they were raised on arches
US Bicentennial edition card
This home is not identified as to location
Hubbard’s Fertilizer Promotional Card
There is no postmark so the year remains a mystery