Chip,
Not sure if the Alston & Bird version is the only one. Wish I'd kept it, but a recent Masters tournament program had a picture of a similar MacKenzie drawing of the course. This particular version hangs outside the chairman's office at Augusta.
I confirmed that Charles Price's wonderful book on Bobby Jones and ANGC, "A Golf Story", has a reproduction of the plan. I'm pretty certain it's the one located at A&B.
A friend who is a retired partner at the firm was friendly with Jones. One of his duties as a young associate was to tote Jones' briefcase. Eventually, Jones gave him the briefcase. It's a prized possession of his, to say the least.
Ken