Image of butter patting at 1-4 Ealing High Street branch

Photograph showing a member of staff "knocking up" (patting) butter in the fats preparation room at 1-4 Ealing High Street branch, using a butter beater and slice to shape the butter into a block of the correct size. It appears that the butter will be packaged in a "Sainsbury's Pure Butter" wrapper. There is a typed label on the back with the reference "MOHFH 61/18", and notes "1. Marbleite slab for bulk fats, 2. "Knocking up" tools of hardwood. Have remained as craft rools [tools?] and are carefully maintained."