eBay

That particular mark is not one I have seen used by an American publisher, but there is a very wide variety of marks used on remainders--besides stamps, spray painting and felt-tip slashes are used.

There are several copies listed for sale on Vialibri.

If you do that, be sure to check that the information provided actually matches the book you have--you can't assume that it will be right.

chicken_john: The market for these is probably in the U.S. even though you would have to charge a lot for shipping. You could try the genealogy category on ebay.com, and, besides mentioning family names and Florida, mention the names of any towns or ...

manor_house_books: There are several copies for sale on addall: Star Compass. Sometimes the spelling gremlins strike.