I always thought the green color was odd -- almost like the buyers at
Gulbransen ran across a bulk deal for Army olive green paint left over
from WW1 -- as everything was green.  By the way, I never knew of or
heard about the different color spool boxes, but my Gulbransen was
green and it had the screwed in pneumatics.  Hope someone else will be
able to demystify this curiosity.

Bill Hoot
towels@earthlink.net