The Macclesfield-based staff of SISIS EQUIPMENT (Macclesfield) LTD
raise their glasses to celebrate the company's 75th.
SISIS pioneered mechanical aeration of sports fields and golf courses and the machine on the right of the photo is one of the earliest models, made in 1938. On the left is the latest in a long line of SISIS innovations, the AER-AID air injection aerator.
: Joint Managing Directors Roger and William Hargreaves get into the spirit of things!