it is a late production 11cab. The early ones had no louvres, just a flat panel and the later ones had the louvres. So as has been mentioned it is more likely to be a 1941.
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Cheers
Cliff Hutchings
aka MrRoo S.I.R.
"and on the 8th day he made trucks so that man, made on the 7th day, had shelter when woman threw him out for the night"
MrRoo says "TRUCKS ROOLE"
