| December 18 1933 | Launched by Cook, Welton & Gemmell Ltd, Beverley (Yd.No.587) for Hellyer Bros. Ltd, Hull as DERVISH (H8).
|
| January 29 1934 | Completed. |
| October 09 1935 | Sold to The Admiralty and converted to a "Gem" class anti-submarine trawler. Renamed HMS PEARL (P.No.T.22). |
| 1944 | Assigned to Operation Neptune - Normandy landings |
| May 23 1944 | Convoy escort duties in British waters and across the Channel in support of landings. |
| July 03 1944 | Operation Neptune ended. |
| April 09 1946 | Sold to J. Marr & Son Ltd, Fleetwood for £14500. |
| December 1946 | New boiler fitted. |
| December 1946 | Reclassed at Fleetwood and renamed WESTELLA (H349). Transferred to Hull. |
| June 25 1948 | Sold to Pegasus Trawling Co Ltd, St. Anne's-on-the-Sea (William Stevenson, St. Anne's-on-the-Sea, manager) for £67000. |
| August 15 1951 | Sold to Iago Steam Trawler Co Ltd, London & Fleetwood (Cdr. E. D. W. Lawford DSO, manager). |
| 1952 | Sold to Dinas Steam Trawling Co Ltd, Fleetwood (Frank Marr, Cleveleys, manager). |
| 1953 | Registered at Fleetwood (FD318). |
| June 01 1959 | Company taken over by J. Marr & Son Ltd, Fleetwood. |
| August 1959 | Sold to Van Heyghen Freres S.A., Ghent for demolition. |
| August 14 1959 | Sailed Fleetwood for Ghent. |
| August 18 1959 | Delivered Ghent. |
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