These Mid range drivers are Magnat cast aluminum speakers with Butyl surrounds,  and were removed from a set of Dahlquist DQM9 cabinets.   They have been in protective storage and are in very good condition.   These Mids have been retested in a working pair of DQM9s with no discernable difference in performance between the pairs. 

These drivers are also used in the Dahlquist DQM9-C as well.