Not real handwriting, but I like seeing postcards with typewritten messages on the back. They seem so much fancier than just using a pen. Plus, it must have been hard to line up the postcard in the typewriter because you had such a small side to use. As you can see, this sender typed room twice.
“Dear sir: Please send me a copy of your “New ideas for old room rooms” booklet. Thanks, Lt. W. E. Bellamy.” The card was mailed to Armstrong Cork Company in Lancaster, PA. Several of these original booklets from 1942 are available online for sale. Someone on Flickr even uploaded a picture of a kitchen from inside the booklet. Armstrong started as a two man operation in a cork-cutting shop in 1860, but today they don’t only make things in cork. 😉