D1A neck profile?

[wengr]

Has the D1A profile changed over the years, and If so at what points in time?

[markT]

The D1...or D1A standard neck is the Modified V.... Options are the Vintage Now (VN) which is a little bigger and 1 3/4" at the nut and 2 5/16" at the bridge. Then the biggest is the Vintage neck profile.{(V) in the model designation on the badge in the sound hole.}
The D1A T (Traditional)....neck is more like the VN and the same width. Although it get thicker up the neck and a more pronounced V up closer to the body.

The Collings website shows this pretty good. But it's in a couple of different places.
https://www.collingsguitars.com/faq/acoustic-guitars/
https://www.collingsguitars.com/acoustic-guitars/d1-t/

[wengr]

Thanks Mark for the reply. The main thing that I am trying to learn is if the typical mod V has always been the same over the years, as I am considering the purchase of guitars built from 2000 up to the present.