How to tell 076 from 2403?

[more10]

Hi

How do I know if my pair is 076 or 2403? The stickers are missing.

[Mike Caldwell]

For the most part the 2403 will be gray and the 076 black.

[more10]

Thanks Mike

Then my pair is 2403 then. Gray case with 16 printed in white within a circle.