Yup, what it says in the subject line! There are some unusual features that I've taken pictures of; maybe they can help date this bag. It's Steel/Crimson. Provenance: eBay.
Old-style strap that's not sewn onto the bag:
Zippers like the old-style Co-Pilot zippers:
Blue patch (with "treason tag" inside):
No 'O' ring in zipper pocket (none in the front of the main compartment either):
The end of the strap securing the male end of the buckle is sewn down: (I prefer it this way)