These are quite rare.  Fernandes' version of Series I electronics.  Unlike the more common FAB-180 bass and FAG-180 guitar, the Masterhand body is not a direct rip-off of Alembic's design.

https://reverb.com/item/15487721-fernandes-mhb-110-masterhand-bass-1979-extremely-rare


Bill, tgo

I couldn't let it left unsaid how fugly those white PUs are!  As many of you know, I have a heavily modified Masterhand guitar sporting three black custom Alembic PUs and non-series Alembic electronics.