First Day Covers

I've divided this page into three sections: FDCs for frog stamps; frog cachets on FDCs for other (non-frog stamp issues); event covers (including duck stams and naval covers). I've put all the cachets for stamps here, even if it wasn't technically an FDC, although I've marked them accordingly. It's easier to keep them all together--like I would in an album--than to get all technical and separate them. This is particularly true for the US stamps, of which there are multiple cachets for each issue.