Looking For British East Florida Cover , Need Help .

I want to add another country to my worldwide collection . As many of you known ,my goal is to have the most extensive worldwide collection ever made . But here is a new discovery I made this past weekend and had to have my wife take my picture so many of you don't think that I'm slipping mentally .

The American Stampless Cover catalog identifies several covers that have Pensacola markings during the period of British control. There is also some discussion of the british period in Florida Stampless Postal History 1763-1861, published by the Florida Postal History Society in 1999.

I didn't quickly find an auction realization but perhaps there was one in the Siskin sale of colonial covers back around 2005.

Will be interested in learning how this search turns out. Steve