| Navy | The Royal Navy |
| Type | Corvette |
| Class | Flower |
| Pennant | K 55 |
| Built by | Harland & Wolff Ltd. (Belfast, Northern Ireland) |
| Ordered | 19 Sep 1939 |
| Laid down | 30 Oct 1939 |
| Launched | 24 Feb 1940 |
| Commissioned | 8 Apr 1940 |
| End service | 15 Mar 1942 |
| Loss position | |
| History | Ordered for French Navy but served in the Royal Navy as HMS Periwinkle. Commanding Officers: Lt.Cdr. Peter Graeme MacIver, RNR |
| Career notes | To the United States Navy as USS Restless. |
Commands listed for HMS Periwinkle (K 55)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | Lt.Cdr. H Row, RNR | 14 Mar 1940 | 18 Sep 1940 |
| 2 | Lt.Cdr. Peter Graeme MacIver, RNR | 18 Sep 1940 | ??? |
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Noteable events involving Periwinkle include:
9 Oct 1940
HMS Periwinkle (Lt.Cdr. P.G. MacIver, RNR) picks up 31 survivors from the British merchant Confield that was torpedoed and sunk by the German submarine U-58 about 90 miles west of Barra Head in position 56º48'N, 10º17'W.
2 Jun 1941
The German submarine U-147 torpedoed and sank the Belgian merchant ship Mokambo in position 56º38'N 10º24'W. In the followup attack by the convoy escort the Royal Navy destroyer HMS Wanderer (Cdr. A.F.St.G. Orpen, RN) and the corvette HMS Periwinkle (Lt.Cdr. P.G. MacIver, RNR) depth charged the U-147 to destruction. (see map)
26 Sep 1941
HMS Perwinkle (Lt.Cdr. P.G. MacIver, RNR) picks up 40 survivors from the British merchant Avoceta that was torpedoed and sunk by the German submarine U-203 in the North Atlantic north of the Azores in position 47º57'N, 24º05'W.
27 Sep 1941
HMS Perwinkle (Lt.Cdr. P.G. MacIver, RNR) picks up survivors from the British fighter catapult ship HMS Springbank that was torpedoed and sunk by the German submarine U-201 in convoy HG-73 north-north-east of the Azores in position 49°09'N, 20°10'W.