Vintage Maestro MM1 Multiplier.

Features:

-Connects 6 accessories in series

-Prevents instrument signal loss when using multiple accessories

-Expands a single channel amplifier to 3 inputs

-On-Off switch for each access

Serial. No 41030

Please note, this is not tested, but presents in excellent visual condition, in bag with original box. My dad's shop sticker is on the reverse.

Rare to find.

Any questions please ask :)