s&w - extract from employee's handbook

Plan [map] of Smith & Walton's Hadrian Paint Works, scanned from the employee's handbook.

Undated, but I think it is some time after 1966, as it differs in a few details from the mid-1950s model [especially areas 1 & 2 - warehouse was built in October 1966, after the big fire]..
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not my image : fair use & public information