Cool. Look very,very vintage. What 's on the other side? I had the opportunity to look at several in an old house attic from the 40's! These are older as I see. Maybe someone can ID the value of the stamps too!
https://www.worthpoint.com/dictiona...s-and-postmarks/cancellations-an-introduction http://www.postmarks.org/resources/Value-of-Postmarks.pdf
I'm not sure they will have much financial value, but as examples of 'life in the day' priceless. The following pair cost me about £15 for both - dated to early 1900's but posted in Spain complete with cancelled stamps. It's a cheap historical fix.
