1928:
The Self-Controlled Air Cushion Co Ltd
SCACO Self Controlled Air Cushions - Pneumatic Seat Cushions
Rec. Num. 1 of 2
Source: The Motor Cycle November 8th 1928
1929:
The Self-Controlled Air Cushion Co Ltd
SCACO Pneumatic Motor Cycle Seat Cushions
Rec. Num. 2 of 2
Source: The Motor Cycle June 20th 1929