The items are US Postal Stationery overprinted for use by US personnel in Cuba in 1899 (US Possession at that time).
ebay won't allow them to be listed even though they were NOT produced by Cuba and NOT from the Castro era.
Trying to sell an item on
ebay with "Cuba" in the title is a quick trip to a permanent suspension (okay, you get one warning).
I can't list on THIS site since I don't have 50 posts.
I know about Stamps2Go.
Are there any other sites?