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BOLEX MC-17 B DRIVE MOTOR, VOLTAGE REGULATOR + CABLES. A really nice set! 

for 16mm movie Cameras

WORKING PERFECTLY

INFO:
http://bolexh16user.net/MC17Motor.htm

As shown, nothing else. Last picture from onlise shows how it attaches. These is also a L-Bracket I have seen which attaches the regulator to the motor but not included.