Help with Old Type ages

[r0ckrat]

Just received a pair of Old Types in the mail today, and was hoping someone might be able to help with determining when these were made. I haven't been able to find any numbers on them at all.

Pics:

 

[Oldguy]

Alex is right about the #501 but most likely they were made after 1921. I have the silver set and mine has a 1921 ser# starting with an N. It still has the thin 102 cap.

Len