I am narrowing down the different helmets used over the years.
In the pictures below from 1974 and 1975, it is my contention that the helmet went from true Vermilion (no logo) in 1974, to Burgundy (USL) in 1975.
For me the tell tail sign is the 1975 photo where you see the carry over helmets from 1974 to which they added the USL logo.
I need your thoughts to iron out the burgundy years.
1) 1974 VERMILION HELMETS
2) 1975 DK BURGUNDY USL HELMETS with a couple vermilion helmets from 1974 mixed in.