Originally Posted by vintage1
Any good? I traced it
Both look very good, Vintage.
You can just make out a comma after Grove and based on the space, it must have had an abbreviation for Pennsylvania there.
I don't believe the current post office scheme was in effect in 1957. Currently we would use PA as an abbreviation.
Back then we used to abbreviate it Pa.
So it's probably either of these:
Willow Grove, Pa.
Willow Grove, PA
Or something completely different! I'll try to determine if PA was use that far back, but it would be better, of course, if someone has a photo or original of that artwork.