Dentist I had in the later 60's (not sure why I even needed one when I was 7-8 years old actually) had this version or one similar but I remember it was a light green color. Like yours, he worked out of his house... Dr. Bachman, somewhere between Lancaster and Clarence, I forget the road.
He wore the "reflector" headband thing and, like I said... have no idea why I was there, had this huge needle apparatus for novacaine... he sterilized it on a fkn bunsen burner, not kidding. The whole thing reminded me of House of Wax... and scared the ***** out of me just like the movie did lol.
He was a very nice man though... guess that's how it was, glad we have moved on.