According to Duane:
"For those keeping track, the last frame made in Deer Park was serial number R6678."
"Also, the last .380 frame made in Deer Park, NY is: K391.
![Smiley :)](http://www.rohrbaughforum.com/Smileys/default/smiley.gif)
"
So they made 47 early R9s with no R prefix: #101 through #147.
Approximately 15 early R9s with custom serial numbers.
They made R100 through R6678: so 6578 total R prefix serial number guns.
Total 9mm: approximately 6640 guns
Total .380: 291 guns."
ECR - please correct if incorrect