Markings ID ~help with manufacturer~

[jpc]

The only part I have is the barrel flats markings.

Any help as to the MAKER is greatly appreciated

Looks to be 410

Shadow is covering the I from IMP

Thanks and take care

jpc

View attachment 283846

 

[maple_leaf_eh]

NP is typically a pressure test marking for Nitro Proof.

 

[LawrenceN]

It looks like one barrel is "modified" choke and the other is "improved cylinder". I concur with the Nitro Proof stamp.

 

[jpc]

Thanks, Fellas. Any ideas who might have made it?

 

[saskbooknut]

Picture of the action flats for markings would help us help you.

 

[jpc]

Picture of the action flats for markings would help us help you.

I only have the barrel flats

 

[LawrenceN]

Sometimes makers stamps are on the sight rib, the side plates, and even on the butt plate. You have to go over the whole thing and see if there are any other marks or stamps. Maybe an overall pic or two might help some of the more knowledgeable shotgun gurus here give you a more accurate idea of what you have. The depth of knowledge on this site is amazing!