Help date-ing new to me Body Hammers

[CH-Midget]

Greetings... Recently purchased several body hammers from an old hot rodder, who claimed to have purchased them from a retiring body man 40 years ago. He cleaned them up and dang... they looked good and I couldn't resist. I realize there are a few of you who are expert and I'd love help identifying those without scripts and the vintage (if possible) of those with.

l. to r.
1) Heller USA (short body)
2) straight medium pick (no markings, this has a large, nearly flat face)
3) Bonney
4) Bonney
5) long curved pick (no parkings)
6) small square square (very light, no markings)
7) top Proto (1428 USA) medium pick
8) bottom Snap On BF 608 USA (bladed)

'preciate any help y'all can provide.
Thanks, Mike

 

[snapmom]

The Snap on will have a date code on it.

 

[CH-Midget]

Oh Cool... where would I look for that? I don't recall there being any more script on the other side.

 

[CH-Midget]

Scratch that dumb response... a quick google check found the chart. There is a symbol after USA on the head, but I can't read it on the photo... will check when I get home tonight. Much obliged...

 

[CH-Midget]

This looks like a 1994 "4" so one hammer dated. thanks for the tip on the date codes.