Crown Over U Proof Mark

Crown Over U Proof Market
Crown Over U Proof Mark Stamp

1891-1945

No	Mark	Valid	Proof
1	1891-1912	Gun in stock after the proof laws was adopted
2	1891-1939	First preliminary proof of a unfinished barrel
3	1939-1945	First preliminary proof of a unfinished barrel (material proof)
4	1891-1939	Primary black powder proof, only on barrels round area - not on barrel flat. Second or final black powder proof, valid such only with a crowned U. Otherwise it means “tested but not viewed after test”
5	1939-1945	Second or final black powder proof, valid only with a crowned U. After 1939 only applied to guns where no semismokeless ammunition was available on the open market.
6	1891-1939	Crowned U with crown represents “Untersuchung” equals “view”. In some cases U with eagle. The difference between crown and eagle is not known. Definitive proof and definitive proof on guns in final state together with crowned B (8). Was replaced 1912 by no 17 for Nitro proof, but was still valid until 1939 as final black powder proof.
7	1891-1939	Proof for revolvers and muzzle loading pistols. Crowned U must be present.
8	1891-1939	Definitive proof of guns in finished state.
9	1891-1945	Proof of smoothbore barrels
10	1891-1945	Proof on choked barrel
11	1891-1945	Proof on rifled “Gezogen” barrel
12	1891-1945	Proof on a choked and rifled barrel
13	1891-1945	Proof on a Express rifle
14	1891-1945	Gauge on breech loading guns
15	1891-1945	Caliber in rifled barrels
16	1891-1945	Reproof
17	1912-1939	Nitro proof or semi smokeless powder
18	1939-1945	Nitro proof or semi smokeless powder
19	1891-1912	Nitroproof for rifled barrels Stahl Mantel Geschoss (Steel Jacked Bullet)
20	1912-1939	Nitroproof for rifled barrels, for steel jacked bullet
21	1912-1939	Nitroproof for rifled barrels, for copper jacked bullet. KmG = Kupfermantelgeschoss (Copper Jacked Bullet).
22	1912-1939	Nitroproof for rifled barrels, for steel lead bullet
23	1939(?)-1945	Suhl proofhouse mark
24	Heart with fir tree or a Z and M together	1939(?)-1945	Zella-Mehlis proof house mark
25	1939(?)-1945	Oberndorf a. N. proof house
26	1939-1945	Ferlach proof house
27	or	1939-1945	Weipert proof house
28	1939(?)-1945	Vienna proof house
29	730 7.30 or 7/30	1922-1939	Date mark, in this case July 1930. Can be used from 1912 but was not a legal demand before 1922.

American Silver Makers' Marks found on Sterling Silver and Coin Silver - 925-1000.com, the internet's most extensive resource for research of Silver Marks, Hallmarks & Maker's Marks. Luger Proof/Acceptance Mark Identification Guide (1898-1945) This is one of a series of identification guides for small arms. To the best of our knowledge, all the examples shown are original pre-1945 manufacture. If anyone has questions or suggestions, please contact Vern@GermanDaggers.com. German firearms are loaded with a variety of markings and stamps. Decoding these proof marks is very useful in determining the age and history of the gun. The crowns over the U and the G are German proofmarks. The crown over G is blackpowder, the crown over U is inspected. Don't even know if you are speaking of a pistol, rifle or shotgun. Much more information is needed, and pictures would be a BIG help.

This is a typical 16 gauge of the period between 1912 and 1939. Marks visible are crown-over-U (final proof) and eagle-crown-over-S (smoothbore) and –W (choked). The 16-in-a-circle indicates the nominal gauge of the shotgun and the 16/1 shows that the actual diameter of the bores was between.662” and.669”.

Crown Over U Proof Market

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Crown Over U Proof Mark Stamp

Last update: 2011-03-18