I am re-posting this thread which appeared 21-8-16 by my friend Darkman to hopefully get new information.
The pistol belongs with the depth charge as both have official tags with matching numbers.
Marked: On Her Majesty's Service 643 N1V Depth Charge "M" .
Pistol is tagged: 643 N1V Pistol Depth Charge Mark 13X.
Stamped on the body is: DCM MO AN 0000. That is Maribyrnong Ordnance. ME is Maribyrnong Explosives Filling Factory.
Pistol has settings for SAFE, 100 and 150.
Dimensions: 280mm Diam. (285 at flared top). 360mm long. 90mm Pistol hole. Dated 6/11/43. Weight 18.5kg (41lb approx).
![3jc0fgHoT0O7OH8sNJMeSA_thumb_1fa.jpg 3jc0fgHoT0O7OH8sNJMeSA_thumb_1fa.jpg](https://www.bocn.co.uk/data/attachments/122/122164-7d42ce63f9d0b845f4964f6f897a7505.jpg)
![6VpLMNkXTsKkeJGixtFm5g_thumb_1fb.jpg 6VpLMNkXTsKkeJGixtFm5g_thumb_1fb.jpg](https://www.bocn.co.uk/data/attachments/122/122165-5fc97445f58e401a8ebfcf97b948cac6.jpg)
![7nqv0Oj3QYCA0jowOA4Etg_thumb_1fc.jpg 7nqv0Oj3QYCA0jowOA4Etg_thumb_1fc.jpg](https://www.bocn.co.uk/data/attachments/122/122166-ce254e9654d807da4f969d8f1acad704.jpg)
![3G+TJiaMQcC%Xrn8xh62Gw_thumb_202.jpg 3G+TJiaMQcC%Xrn8xh62Gw_thumb_202.jpg](https://www.bocn.co.uk/data/attachments/122/122167-aa1507d5999a8e939c6eb684b03a78c0.jpg)
![3x6S1nwIR7avbteamkmEWg_thumb_1fd.jpg 3x6S1nwIR7avbteamkmEWg_thumb_1fd.jpg](https://www.bocn.co.uk/data/attachments/122/122168-1020e3d9e7c0cae8915be4f8763e3908.jpg)
![AlcmMxpFTzGL%Fk4hMCCSQ_thumb_201.jpg AlcmMxpFTzGL%Fk4hMCCSQ_thumb_201.jpg](https://www.bocn.co.uk/data/attachments/122/122169-bc9368c69fd4d21e2374c8d0825351c4.jpg)
The pistol belongs with the depth charge as both have official tags with matching numbers.
Marked: On Her Majesty's Service 643 N1V Depth Charge "M" .
Pistol is tagged: 643 N1V Pistol Depth Charge Mark 13X.
Stamped on the body is: DCM MO AN 0000. That is Maribyrnong Ordnance. ME is Maribyrnong Explosives Filling Factory.
Pistol has settings for SAFE, 100 and 150.
Dimensions: 280mm Diam. (285 at flared top). 360mm long. 90mm Pistol hole. Dated 6/11/43. Weight 18.5kg (41lb approx).
![3jc0fgHoT0O7OH8sNJMeSA_thumb_1fa.jpg 3jc0fgHoT0O7OH8sNJMeSA_thumb_1fa.jpg](https://www.bocn.co.uk/data/attachments/122/122164-7d42ce63f9d0b845f4964f6f897a7505.jpg)
![6VpLMNkXTsKkeJGixtFm5g_thumb_1fb.jpg 6VpLMNkXTsKkeJGixtFm5g_thumb_1fb.jpg](https://www.bocn.co.uk/data/attachments/122/122165-5fc97445f58e401a8ebfcf97b948cac6.jpg)
![7nqv0Oj3QYCA0jowOA4Etg_thumb_1fc.jpg 7nqv0Oj3QYCA0jowOA4Etg_thumb_1fc.jpg](https://www.bocn.co.uk/data/attachments/122/122166-ce254e9654d807da4f969d8f1acad704.jpg)
![3G+TJiaMQcC%Xrn8xh62Gw_thumb_202.jpg 3G+TJiaMQcC%Xrn8xh62Gw_thumb_202.jpg](https://www.bocn.co.uk/data/attachments/122/122167-aa1507d5999a8e939c6eb684b03a78c0.jpg)
![3x6S1nwIR7avbteamkmEWg_thumb_1fd.jpg 3x6S1nwIR7avbteamkmEWg_thumb_1fd.jpg](https://www.bocn.co.uk/data/attachments/122/122168-1020e3d9e7c0cae8915be4f8763e3908.jpg)
![AlcmMxpFTzGL%Fk4hMCCSQ_thumb_201.jpg AlcmMxpFTzGL%Fk4hMCCSQ_thumb_201.jpg](https://www.bocn.co.uk/data/attachments/122/122169-bc9368c69fd4d21e2374c8d0825351c4.jpg)