| Name | ICEFIELD 4136 |
| Type | Naval Drifter |
| Year | 1919 (completed October 1919, laid up) |
| GRT | 96 |
| Engines | Steam T. 3cyl by Robertson & Orchar Ltd., Dundee |
| Builder | OUSE SHIPBUILDING CO. LTD. |
| At | HOOK |
| Launch date | 05/04/1919 |
| Yard number | 64 |
| Owners | The Admiralty |
| History | 02/0920 completed as a fishing vessel. Sold in 09/1920 to Fisheries Board of Scotland for re-sale. 1920 sold to A. Watson and others, Pittenweem and renamed JESSIE WATSON (KY52). 1923 to owners at Cellardyke as ANSTER BELLE (KY52). 1935 to A. Gardner, Anstruther and J. Graham, Hartlepool as MEMORIA (KY52). 1936 to Portgordan owners as UNITY (BCK109). 03/1940 requisitioned for the Examining Service and renamed FENELLA, returned to owners 02/1946 and reverted to UNITY. 1948 sold to Bloomfields, Gt. Yarmouth and renamed OCEAN UNITY (YH293), engaged in seasonal fishing out of Fleetwood and Padstow. |
| Fate | 12/1955 registry closed after sale to Belgian shipbreakers. |
ICEFIELD as OCEAN UNITY
Thanks to Barry Banham and Gilbert Mayes for additional details