I always use the PGAvalue.com guide when determining the value of a club. There is a Scotty Cameron Bulls Eye listed and the trade in value is $27, so figure the retail, double that. $54. Do not know if that one has the stamping on it. I thought the Reuter, Jr stamping was on the Acushnet Bulls Eye putters from the late 60's and early 70's. If so if is probably worth about $9. I have one of those and PGAvalue guide no longer lists that putter's value. Hope you find that it is indeed a rate Scotty. You might consider contacting Scotty Cameron customer service for assistance. I copied this information off of the Scotty Cameron site: FOR ALL OTHER TITLEIST PUTTER OR CLUB RELATED QUESTIONS, PLEASE CONTACT TITLEIST CUSTOMER SERVICE AT (800) 555-9282 OR THE TITLEIST GOLF CLUB WARRANTY & REPAIR DEPARTMENT AT (800) 742-7609.

Bullseye putters pre Scotty and Acushnet/Titleist (1962) would have more value, but, not sure if of great value.