I bought an estate several years ago that had hundreds of gun parts, partial receivers, and almost complete guns. I have slowly worked my way through it and have identified most of it. I have even made quite a few shooters out of the pile of parts. I set things aside that I wasn't sure of back then and now I'm going back through those parts. I have four Stevens Tip-Ups of different sizes and configurations. They are mostly bare receivers with very few parts. I thought I would post some pictures and measurements to see if anyone could help identify what they are. I believe the three larger ones might have been shotguns because they have a round notch in the top of the receiver that might have been for course sighting. The smallest one is different, it has a flat top receiver and no upper or lower tang. Here is a picture of all four.

These two pictures are of one of the medium sized actions, it is the one with the complete unbroken lower tang. It measures 1.10" between the walls that the barrel sits in just in front of the breech face. It measures 1.375" wide on the outside across the breech. It has serial number 2657 on the inside surface near the end of the lower tang. It is approximately 4.20" long from the rear of the receiver at the firing pin hole to the front edge of the receiver.

The last two pictures are of the smallest action. It has no upper or lower tang. There are some numbers on the back of the receiver where the upper tang would be on a normal one. They are so faint I can't make out what they are. The also seems to be very small writing below the numbers but I have tried every magnifier I have and can't tell what they are. It measures 0.882" between the walls that the barrel sits in just in front of the breech face. It measures 1.20" wide on the outside across the breech. It is approximately 4.32" long from the rear of the receiver at the firing pin hole to the front edge of the receiver.

I measured my 2 tip up rifles, they measure 1.375” on the out side of the frame. The barrel channels are about 1.02”, hard to measure with calipers with the barrel in the way, and with the barrel width at 1”. Hopefully someone has a ladies model tip up, and a shotgun they can measure for you. My reprint catalogs have ladies models 11,12,13,and 14 listed .

Here's another picture of the small one. It shows the angle milled into the rear of the receiver. You can also see the nickel plating on the side of it as well.

I can't see anyplace where a through bolt could connect. It doesn't have any extra holes and there is nothing inside that anything could grab onto.
Dave

If the extractor linkage is missing there would be a threaded hole for it in the barrel channel in the bottom of the frame.
That frame is certainly a head scratcher!

So it did have a trigger guard.  But if there's only one hole for it, that's another indicator that at least a lower tang is missing.  So I'm back to my original surmise: a smaller, lighter-weight tip-up rifle using the same frame forging/casting as did the "Hunter's Pet" pocket rifle.  And what makes you so sure it was plated AFTER the tang(tangs) was(were) removed?

Bill Lawrence