1942-1954? Dunhill
127 Billiard group 4R BIO
I'm not sure what 'BIO' means in the stamping, anyone know?
Made In England
Pat No. 417574/34
length 5 1/2"
height 1 7/8"
width 1 17/32"
chamber diameter 3/4"+
chamber depth 1 9/16"
pipe collection number d15