To the fellow searching for a set of Gulbransen pumps [030216 MMD].
If you are still in need of such an item I have a set in my shop and
they are complete and original.  You can purchase said pumps for $50.00
and either arrange for pick-up or shipping if desired.  These will need
to be restored.

I would think that you might be able to find these in most any part of
the country as there are so very many of these Gulbransens that no one
wishes to restore or has the know-how to do them.  Old Gulbransens are
kind of like model T Fords; they were good dependable pianos in their
day and there are still plenty of them around today.

Jim Jelinek