Ran across these as was going through some of my US Stamps (which I don't collect).
As I don't know anything about precancels, thought I would ask experts.
I probably have some VERY unique pre-cancels, as my Grandparents were postmasters in a very small town in California. They were the ones who got me interested in stamp collecting as a kid (1960s). As postmasters, they pre-canceled some stamps for me from the town (including some that were upside down). Obviously these are stamps from that era (1960s).
Questions:
1. Is there a town list for Pre-Cancelled stamps? Is Caliente California on that list?
2. I assume that more valuable pre-cancels are also due to the stamp they are cancelled on, is that correct?
3. I don't see many pre-cancels from more modern stamps, so I assume they arn't really collected much.
Here are a couple of examples of the Caliente Pre-cancels. Any thoughts or comments are most welcome.
Michael

