Ball end Tech question

[Hotnsharp]

Is there a way to tell the difference between a '54 and a '79? According to the wiki both are Z date coated.

Than you guys in advance.

 

[Copierguy]

Is there a way to tell the difference between a '54 and a '79? According to the wiki both are Z date coated.

Than you guys in advance.

This pictorial essay only goes to '66 but I think they used the base plate that has the four corners cut out in the later years like 1966.

Also the thicker alloy cap was used in 79.

 

[BBrad]

Was the ball-end handle still being used in '79?
(edit)
Answer: yes, as evidenced here.

The Z-4 ball-end handle was aluminum, and had a different knurling pattern than the 1950s version, which was brass.

Should be easy for Hotnsharp to visually determine which handle he has . . . or if he posts a picture we can tell him for certain!

 

[Hotnsharp]

I apologize for the lack of pictures. Here are some. One pic is of both Techs that I got this week, and the rest are of the Tech in question.

 

[Copierguy]

Your Z1 Ball End Tech is a '54.......Enjoy.

 

[Hotnsharp]

Thank you very much. I have a Old Gillette RAD and my wife is no help. She is enabling me big time. I am glad I do not frequent eBay.