An outing to Blackpool.  The hats with slogans, like 'Oh Baby' were probably bought on the front, and the large fake beer bottles are probably studio props.  The mandolin-banjo and the G banjo players seem to know what they're doing.  The open-neck shirt with the collar outside the jacket dates it as mid- to late 1930s.
Photo by Charles Howell, Official Photographer, Pleasure Beach, Blackpool, Lancashire.
From Reg Hall Collection.