| Navy | The Royal Navy |
| Type | MS Trawler |
| Class | P |
| Pennant | T 191 |
| Mod | First group |
| Built by | Antonio Monica (Aviero, Portugal) |
| Ordered | 15 Jul 1940 |
| Laid down | |
| Launched | 14 Jul 1942 |
| Commissioned | 8 Mar 1943 |
| End service | |
| History | Originally named Port Royal but renamed Proof in 1943. |
| Former name | HMS Port Royal |
Commands listed for HMS Proof (T 191)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | |
| 1 | T/A/S.Lt. Charles Henry John Mogg, RNVR | 20 Oct 1943 | 6 Jan 1944 |
| 2 | Peter Lowell Sage, RNVR | 6 Jan 1944 |
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