Hi, they are not bolts. One is a screw. I’m not sure what the other would be called but they do not look like they are designed to attach to something else. I’ll include a close up picture. Please feel free to post to any other forums.

Are those bolts at the top ?? Can you tell what they might do ?? I mean do they look likke something should be attached there ?? Just need your impression of what you are seeing !!
Do you mind if I cross post this to another forum ?? I have not found anything on the patent date or the foundry !!

Hi, I got it at an estate sale in kittanning pa. A small town on the Allegheny river about 30 miles north of pittsburgh. It’s 3 1/8 th inches wide and 2 inches high. It is not curved. I’ve added a picture from the side.

Thanks, I tried that, as well, but can’t get it to work, so far.

Figured out what I was doing wrong and updated post with photo’s.