Choke dash label question

[shadwolf]

Hi everyone,

I'm relatively new around here, and have searched past posts for the answer to this question but couldn't find where it had been asked before...

I see that on those dashes with manual chokes there seems to be two different ways they're labelled on the dash - one with it apparently part of the dash panel as seen in the top most pic in this post:

http://67-72chevytrucks.com/vboard/s...d.php?t=200203

and one where the label for the choke is on a plastic add-on tab, seen in the second picture in that post.

Why the difference between the two? Is it year-model difference? Does anyone make reproductions - or know where to find - the plastic add-on tab?

Thanks