Interesting find on my Corvette tach.

[DarrenX33]

Have the dash out. I notice this on the back of the tach.

http://img.photobucket.com/albums/v370/darren_costello/1972%20Corvette/4E07F2C9-8F60-4DC7-80D4-F4A5B410747E.jpg (http://smg.photobucket.com/user/darren_costello/media/1972%20Corvette/4E07F2C9-8F60-4DC7-80D4-F4A5B410747E.jpg.html)

[Bill Pritchard]

Is that a person's name under the date, Darren? Pretty cool.

[DarrenX33]

Pretty sure. Wondering about the significance.

[ssl78]

I would think that they had to pull a tach off the line at certain intervals to test accuracy thats what happened and the guy who did it had to sign and date it.

[DarrenX33]

Date is 77 though.

[Kurt S]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ssl78</div><div class="ubbcode-body">I would think that they had to pull a tach off the line at certain intervals to test accuracy thats what happened and the guy who did it had to sign and date it. </div></div>
Not off the assembly line. Maybe audited in the supplier plant, but it wouldn't be signed.
This is a later repair or calibrate job.