ID:
727
Maker's Name:
For Clyde Fuel Systems Ltd.
Where made:
England
Dimensions:
150 × 30 × 5 mm
Six inch plastic rule with A,B,C,and D scales, marked 'Made in England' S137 on the front.
The back is branded CLYDE FUEL SYSTEMS LTD COMBUSTION ENGINEERS HILLINGTON GLASGOW. S.W.2