Greetings:  Don Teach mentioned in the 990125 MMD that some early
Gibson banjos had a little door on the back just for insertion of
a light bulb to heat and tighten the calfskin head.

Actually, these were called Gibson "Trapdoor" banjos.  The trapdoor's
purpose was to regulate tone and volume, although Don's suggestion was
no doubt an added benefit.  Search for "Gibson trapdoor" and you'll
find one for sale at Elderly Instruments.

Regards

Mike Ryan
Milwaukee WI

 [ I need a "resonator" back cover for my old Vega Tubaphone 6-string
 [ banjo, and it might as well have a little hatch door to service the
 [ lamps.  Then I can call it a "Vega Hatchback"!  ;)  -- Robbie