The date codes are here:
http://damascus-barrels.com/Belgian_All_Proofmarks.html

Doverham,

Nice site. However, he is using a single source, "Marquis et Poincons D'Armes en Belgicue" by Bruno Joos De Ter Beerst. Beerst has several errors in his proofmarks. Also, he lists controllers of proof back to 1911. The controllers listing is not accurate prior to 1924.

I used Beerst, Wirnsberger, Kennett and A. Baron Englehart.
Wirnsberg wrote, "A Standard Dictionary of Proofs".
Gun Digest Treasury, Published in 1960 contains a series of articles on European and British proof marks. The articles cover 72 pages it includes many illustrations. The author is A. Baron Englehart

Lee Kennett, "A History of Proof Marks. Gun Proof in Belgium", (highly recommend) from Gun Digest 32nd edition 1978.

Here are the Gun Digest articles by Lee Kennett for proof marks.
22nd Edition Czechoslovakia -1968
23rd Edition Austria Hungary & Austria - 1969
24th Edition France - 1970
25th Edition Spain -1971
26th Edition Italy - 1972
27th Edition Hungary - 1973
28th Edition Russia - 1974
29th Edition Germany -1975
30th Edition Military - 1976
31st Edition England - 1977
32nd Edition Belgium - 1978

Gun Digest Treasury, Published in 1960 contains a series of articles on European and British proof marks. The articles cover 72 pages it includes many illustrations. The author is A. Baron Englehart

Pete

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