Never saw one for the Turner mics, Steve. Nice little accessory. It's great for keeping dust off the mic while not in use.
Most manufacturers who made mics of any quality offered these. RCA even had a zippered version for the 77 line. They were mainly designed to protect the mics during transport. A lot of studios and stations had mics for recording or remote use that were stored away when not in use. I've got one for EV, Shure, and a nice homemade bag on one of the RCA-74B mics.
The 33X would appreciate one of those.
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