Humber2, thanks for the detailed information.
The 1981 GEDORE catalog mentions the following:
Model 62, adjustable wrench, left hand knurl, DIN 3117, Form A, jaw position 15°; , special steel DIN 17.200 W.- No. 1.0501.
Sizes 6, 8, 10, 12, 15, 18, 26". (26" jaw position 45°).
Model 91, adjustable wrench, right hand knurl, DIN 3117, Form B, American pattern, jaw position 22°, special steel DIN 17.200 W.- No. 1.0501.
Sizes 4, 6, 8, 10, 12, 15, 18".
Model 88, adjustable wrench, right hand knurl, DIN 3117, Form B, American pattern, extra slim form, jaw position 22°,
GEDORE-VANADIUM 31 CrV 3 W. No. 1.2208.
Sizes 6, 8, 10, 12".
The question remains for me: why should the American wrenches have right hand knurls and European left hand ones.
Regards
Henri