The problem of how to send out the cards that have already been written on has been solved!
What I'm gonna do is cut card stock to the size of the postcard, draw some address lines on the back, and tape it to the postcard on one side with clear tape. I found these cool, clear, circular tab things that are perforated down the center - I'll put one of these on the other side. Basically it makes a little card that you can rip open. This method will allow me to send the card "postcard style" (writing and stamp on the outside) but still retain the original message (on the inside). The recipient gets a full-on-double-postcard with my message and a random historical message - which I think is pretty cool!
Below is the prototype. I'm sending it to a cousin who loves the 50s/60s era. I think he'll really like the art.
I scanned the back so you can read the touching original message from a Father to his daughter.
The bottom image is what I've taped to the back of the card.
So, this particular card has had the stamp ripped off but, and I don't think I've ever mentioned this, judging from dates on other cards around this one in the album I think this card is from 1960!! I can't believe it's 50 years old!! I mean, I can believe it but yet, I can't...