Rabbit,
On those flats are the guns original chamber markings, likely 65 or 70 stamped on each side. If, when peering at the flats you find 65, my bet is the gun is much older than you suppose. In fact, I'll go out on a limb and say it is older than that anyway. Charlins were produced by the Darne company from 1955 (when Charlin went bankrupt, along with about half of St. Etienne) until 1965, when the guns were discontinued, along with P model Darnes. Charlins were NEVER built in great quantities by the Darne company, and have further Darne markings on the barrels, usually, anyway.
Might just be me, but the stuff Hallowell has seems like it is worth a bunch more to him than it is to me, if you know what I mean.
Best,
Ted
