They are currently in a shoe box and I really didn't want to count them all, so I just counted out 100 of them.
100 postcards took up an inch & a half.
I have 14 1/2 inches of postcards.
My mad math skillz tell me that I have somewhere between 900 and 1000 postcards.
I know I have all the continents, but I'm not entirely sure if I have all the states yet... I should probably do some kind of inventory list of where I have them from... Sounds like an Excel spreadsheet kind of project. Then I could also flag if they were used or unused. Not that it is important to anyone but me, I just like having inventories.
*edit* Ok you smart-asses. It now says 'between 900 and 1000'