That Roy C. Gold celluloid on the RC Gabbi was discontinued. Another similar ( Chinese ) imitation has surfaced.. but not as nice. Hard to find ..but obtainable if you have patience.
The Boozoo box is an ACADIAN brand triple row. I do not have facts, but heard they were triple rows that perhaps Marc had commissioned somewhere. I heard this years ago, but can't confirm its validity. They were around in the 80's.. and both Boozoo and Rockin Dopsie played them.. they surface in 80's Zydeco band photos and album covers.
None to be seen or heard of anymore. Boozoo and most others moved on to Gabbs or Baffetti's in the 90's..
Don't miss checking out Corey Ledet's youtube version of "Boudin Man" too. Use this with his DVD version and you will have plenty of things to work on.