Matching up Ignition Switch to Year

[YL82]

I've got a surplus ignition switch that has 4 working keys, 1 original and 3 copies.

In the first image, the surplus switch is on the right and is the shorter one. I removed it from a '76C. The taller switch on the left is the correct one for a '76C.

From the code and images, can anyone narrow down which year the switch belongs to? I'm assuming that its from a XS650, but that may not be correct....

 

[JP50515]

It appears to be the same one off my 77'. My guess is 77-79, but don't quote me. Whoops read that all wrong. The one on the left is the same as my 77. Not sure of the one on the right...almost looks older.

 

[YL82]

I'm thinking older too. I'm wondering whether there is a faceplate ring missing on it (where it would say "Ignition", etc.).

 

[650Skull]

74TXA/75XSB Ignition switch

 

[YL82]

Thanks, 650Skull !