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Proof Date Question #278516 05/17/12 02:05 PM
Joined: Jun 2011 Posts: 59 San Diego,CA,USA chipmaker OP Sidelock
OP chipmaker Sidelock Joined: Jun 2011 Posts: 59 San Diego,CA,USA	Attached are some images of a Combination Gun (410/22 lr) with German proof marks. The barrels are marked ACO inside a L shaped bracket at the breach. Is this the maker? On the underside of the barrels there are two three digit numbers 430 and 706. Am I correct that the gun was submitted for proof in April 1930? If so what do the 706 numbers signify? [img:left]http://[/img] [img:left]http://[/img] Otto

Re: Proof Date Question chipmaker #278517 05/17/12 02:14 PM
Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama ellenbr Sidelock
ellenbr Sidelock Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama	April 1930 is correct for the proof date at the Zella-Mehlis facilty. The 706 number notes it was the 706th for that month and it was proofed in the final state. I'd like to see a better image of the encircled letters above the 10.8m/m stamp as it looks like the Belgian ACL? Kind Regards, Raimey rse

Re: Proof Date Question chipmaker #278535 05/17/12 04:51 PM
Joined: Jun 2011 Posts: 59 San Diego,CA,USA chipmaker OP Sidelock
OP chipmaker Sidelock Joined: Jun 2011 Posts: 59 San Diego,CA,USA	Raimey, Thank you for your response. It looks to me that the right barrel is stamped 10.45mm Above this there are three stamps (crown over S,B,U). the circle looks like it contains the number 44. On the left barrel above the 5.3mm stamp are the crown over G,B,U. What tells you that the proof was done in Zella-Mehlis and in the final state ? Otto

Re: Proof Date Question chipmaker #278536 05/17/12 04:57 PM
Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama ellenbr Sidelock
ellenbr Sidelock Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama	Otto, the "Crown" over "B" notes final state and the ledger number notes Zella-Mehlis. Ah, the encircled 44 is the gauge designation. Hum, I wonder if 10.45mm equate to 44 bore? Kind Regards, Raimey rse

Re: Proof Date Question chipmaker #278563 05/17/12 08:36 PM
Joined: Jun 2011 Posts: 59 San Diego,CA,USA chipmaker OP Sidelock
OP chipmaker Sidelock Joined: Jun 2011 Posts: 59 San Diego,CA,USA	Raimey, Thanks again. The shotgun barrel is chambered for the 410 shell and 10.45 mm translates to .411". Like wise 22 lr barrel is marked 5.3 mm which is .209". Otto

Re: Proof Date Question chipmaker #278565 05/17/12 09:07 PM
Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama ellenbr Sidelock
ellenbr Sidelock Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama	10,41mm is 67,49 from here: http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=213433#Post213433 and 44 is 12,01mm or something of the like. Kind Regards, Raimey rse

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