The penny is there for scale so you can see in the pic how unusual these covers are. One is long and narrow and the other is squarish and stout-looking. The price below is for the pair.
I have seen covers like the bottom specimen but the one one the top is rare indeed. I can't remember encountering one before in used or unused condition.
Each is in perfect condition with full flap. One image is with flash and one without.
Remember that envelopes and other small, flat items can be shipped most affordably!
All firearms sold are pre-1898 and historic collectibles. They are not meant to be fired. Jim Stanley & Associates (cwartifax.com) will not be liable for injury incurred due to any weapon or artifact purchased from this site. All artillery projectiles sold by Jim Stanley & Associates are absolutely safe and have been professionally and safely de-activated.