Hi All,  Here's a diagram and a 'see-through' picture of the forward
roll brake drums that I'm having manufactured.  They are being made
out of brass.  The depth of the hollowed out section is 0.720".
The samples of the rewind brake drum are being shipped to me today.

I estimate that the cost for a set of these will be around $100.00.
Standard U.S. Postal Service Priority Shipping within the USA is
$6.95.

Musically,
John A Tuttle
Player-Care.com
Brick, New Jersey, USA

 [ CAD Diagram 'B' Forward Roll Brake Drum
 [ http://www.mmdigest.com/Attachments/16/03/08/160308_114407_forward-roll-1.jpg
 

 [ 'See-Through' of 'B' Forward Roll Brake Drum
 [ http://www.mmdigest.com/Attachments/16/03/08/160308_114407_'B'_Forward_Roll_Brake_Drum.jpg