[Mr70]

My apology Mike,I was wrong when I said yours is 100% a reproduction tire.I now believe you have a real 50+ year old RWL tire there.
When I said tread design,I was comparing yours to this original redline Firestone tire I've had in storage that shows 8 tread valleys.I always thought it was an original Firestone F70-14 RWL up there,but could only see it's tread design and nothing else.Untill I removed it this weekend and see now it's really an F70-15 Firestone Bias-ply Redline tire,not a 14" RWL at all.
Sorry about that,and you have a very nice find that I wouldn't mind owning.
This it what I was comparing yours to.