I believe, but can not be 100% sure, that this was his helmet at Stamford.

I bought it at a sale at the home of a collector who did shows, many with Oakland Raiders players (Ritchie was drafted by the Raiders)

NO COA

Signed by Jon Ritchie 

(I have an Oakland Raiders helmet for sale in separate auction that I also believe was Ritchie's helmet)

See all pix for best description and condition

SOLD AS IS

Heavy Helmet