House flag of the Queen Steam Fishing Co. Ltd, Grimsby. A white flag with a blue saltire overall and a red letter 'Q' in the centre. The flag is made of a wool and synthetic fibre bunting. It has a linen hoist and is machine sewn. A rope and two Inglefield clips are attached.

The Queen Steam Fishing Company (QSFC) began as a family business in about 1900 owned by A. & R. Osborn. During the 1940s and 1950s the boats in its fishing fleet were named after castles. The QSFC specialized in steam trawling in the North Sea, but in 1956 went over to purse seine nets and changed the structure of its fishing fleet accordingly. QSFC bought the 'Crescent', the ‘Helen Jorgensen’ and the ‘Jane Jorgensen’(all purse seine netters) from Denmark. Additionally they commissioned a new purse seine netter from Scotland (they also owned eight steam trawlers at that time). In 1965 the Ross Group launched an offer to buy QSFC which was accepted. At that date the QSFC only owned two purse seine netters: the ‘Sandringham’ and the ‘Crescent II’. After the takeover the house flag of the QSFC ceased to be used.