Some time ago I posted about I guitar I ended up buying that has been butchered, almost beyond recognition, but for which the best explanation was that it was a very last custom telecaster, made in 1972. See here for that thread http://www.tdpri.com/threads/maple-cap-on-a-1972-transition-neck-photos.610560/ Then this was posted on Reverb. It's supposed to be a 73? Interesting stamps on the neck and body would appear to confirm this. Check it out.