Help with a Snap on Date Stamp!

[MysteriousGT]

I Picked up these wrenches and the Date Stamps that look like it are 1957 and 1987...they are so close in resemblance that i cant tell!...My Brother says 1987 and i think 57 lol "We are Both probably Wrong with my Luck"

I Know its the Older Logo Style with the Underline...but the Plastic Case is Throwing us Off...Can Someone help me id the Year on this?

And is there a Site for Referance to the Change of Logos>

Thanks

[rusty]

The top of the 7 in 1957 would be *noticably* rounded, also , I don't think that wrench was available with mirror polish chrome in 1957, just matt chrome....

for 1967, it would be right angled, for 1977 it's backwards (which can be tricky if it's on the back and you are using a mirror ;P) , 1997 is noticably curved on the side, so I'd go with 1987 ....

Logo changes after the mid 50's are *very* subtle, not helpfull for dating...

[JeremyManning]

1987

[1930]

I would guess that the bulletproof carry case should have maybe given it away