I'm not actually sure how much of the information I pulled off the stamp is correct. It's so very faint - I saw examples of other propellers that had info stamped on the hub in very large lettering.
On this one, it's off to the side of the hub, and all lines (combined) probably only span about 3 inches. So in addition to being extremely faint, they're small.
I did take a picture, but it's on my husband's computer... so I'll post one later (probably next week) after it's transferred from his to mine.