Just a quick hit today as I'm headed off to a postcard show. I'll be looking for knitting postcards ... and ones about cheese.
The lovely Anna Allen ran across this image:
The little girl's jacket is either knitted or crocheted. The photo seems to be just post-war, based on dresses, hats, and hairstyles, as well as the fact that they're playing croquet. You can see the original photo here.