A set of twelve silver Pembury pattern fish knives and forks with a pair of servers by Mappin & Webb

A set of twelve silver Pembury pattern fish knives and forks with a pair of servers by Mappin & Webb, Sheffield 1928, Rd 664260, engraved with a crest, the serving slice 31cm (12 1/4in) long, in a mahogany case

There is a possibility of this being for the NORTH family, the Earls of Guildford and/or Rougham Norfolk. The blazon: a dragon's head erased gules, collared and chained or. This is assuming the engraver has taken some licence in creating the crest (possibly because the design is small).