So far all I've been able to do with these "late-model" (1926)
Gulbransen Unit-Pnematics is DESTROY THEM!  The fixed board is very
thin, maybe 3/16", and the old hide glue is incredible.  I made a
hardwood jig to support the fixed board and tried to drive the pouch
block off and finally broke the epoxy on my jig.  I can break the fixed
boards off in splinters (don't ask how I know), but I'd sure like to
find a better solution.  I tried microwaving one for about 30 seconds.
No help.  Should I cook them longer? steam them? (Reblitz doesn't like
moisture.)

Anyone have any ideas?

TIA, George (gbb@creighton.edu)