Just arrived today, my latest Peterson system pipe, an old sandblasted System Premier 313. The hallmark on the silver band is very worn but appears to be the G for 1974.
The stem is rather chewed but it should clean up just fine and the bowl seems to be in excellent condition. The job for the bank holiday weekend will be to give this pipe a good spiffing. Once that is done I expect it will smoke as well as my smooth System Premier 313.
Update: I've replaced the stem with suitable system standard stem (and stored the original away in a labelled bag). The pipe sits much more comfortably in the mouth now.
I guess a System Deluxe 8s will complete the job. One like the one on the left will do nicely.