Very interesting
Found another

A Percussion Sporting Gun by Boston | Garth Vincent

www.garthvincent.com

And a trade label for Boston of Wakefield

Brotn. Boston - Wood Street, Wakefield Trade Gun Case Label

Brotn. Boston - Wood Street, Wakefield Trade Gun Case Label. Black on White Paper 11x7cm. Labels are supplied in a sealed bag, item non-returnable if the seal is broken.

www.henrykrank.com

Yes, the proof marks are Birmingham. Is there no number, like '13'?

It looks to have a variant of the Manton Grip Safety

 

Another

Percussion sporting rifle, .71 calibre.

Find out more about Percussion sporting rifle, .71 calibre. at Collections Online - Museum of New Zealand Te Papa Tongarewa

collections.tepapa.govt.nz

John Boston; Wood Street, Wakefield, Yorkshire, England. Trading from 1827 until about 1857.

Could you please post a close up image of the grip safety?
And a section of barrel where the pattern is most apparent and I'll 'read' the crolle pattern.

 

Can do.

 

That is one awesome shotgun. And, Drew, you never cease to amaze.

 

Listed under 'Gunmaker' in 1853

Search results for \"" + seARchMAker + "\"

 

The barrels are approx 3/4” and do not see a number on the barrel. Just the two sets of proofs.

 

Thank you and what a neat gun.
Someone with a bore gauge will need to measure the bore.

The fact that the barrels are 'English 3 Stripe' rather than Stub Twist is in keeping with the very high quality of the gun

 

 

Thank you very much for taking a look and sharing that knowledge. Your website is very impressive also! I found and ordered: Birmingham Gunmakers: A Complete Overview of the Birmingham Gun Trade and its History by Douglas Tate. Looking forward to learning more.

 

A charming and beautiful gun.