Topic: Bell Dimensions 1978 Schreiber Bassoon

I need the dimensions for a 1978 Schreiber Bassoon Bell.  The bell is missing I am turning a new one and would like the following measurements:

1.  Over all length
2.  Inside diameter of the top
3.  Distance to center of Bb key hole from bottom of bell.
4.  Inside diameter of Bb hole.

The diameter of the key hole and the lower edge of the key hole will work also.  I will have to tune it to the instrument. 

Thanks for your help.
Doug Joksch

Doug Joksch
Oboe, E-Horn, Bassoon