Men: In Groups and Three-Piece Suits

I estimate that these photographs date from c.1910 - 1945.

Note the distinctive pale checked waistcoat of the man standing centre-back and the stem of a clay pipe held by his friend on the right.

 I'm curious about this picture.  Does the difference in type of hat indicate different class / background?  The man in the flat cap doesn't have quite as good a suit as the other two and his hands show signs of hard work.

Have these men come for a holiday or day trip in one of the coaches seen in the background?