So it ain't a Parker?
 

So the Parker I was gifted isn't a Parker. What I thought was a "Dollar" grade built in 1881 is an English Tho's Parker. I can't find much info on it except it may be an H. Pieper machine build from the Montgomery Ward Catalog. It has Birmingham machine stamps on the water table and barrels. Really nice scroll work and engraving. The rebounding hammers and back action work. To me it's a beautiful gun with sentimental value as it was a gift from my in-laws with some family history for them and my wife. Does anyone on here know any more about these guns or where information can be found? Since it has Parker on the side, I'm sure this comes up every so often here.

Henri Pieper was a Belgium Maker- so his products would not have Birmingham proofs

Nice engraving

Is there an inscription on the rib? A Pieper gun could have have Belgian proofs if sold there. The gun has English proofs and no Belgian as far as I can see. Some countries allowed export without proof as long as they were exported from the factory. They would then be proofed at the destination. The gun looks to be a higher grade than the normal Belgian contract gun.

You might want to post at https://www.doublegunshop.com/forums
There is a lot more interest there in European guns. Some overlap with here, but there is not a lot of interest here in "not Parkers".

By the way, those are not back action locks. They are the later type. Probably made in 1880-1900 is my guess.

It's not Belgian, I read it as a possibility from another forum not fully understanding the difference. All proofs are English. I just can't find any information on any manufactures building under the name Thomas Parker except in 1832. The Birmingham proof marks place it 1887 to 1904. I attached a better pic of the proofs. Thanks for the info.