Nice collection of alembics you have there, However unless you are describing another bass in your collection, that 5 stringer does not look like a series Bass. Not enough knobs and switches, no 5 pin series socket or hum canceller visible. Looks more like a MK style body with vol, pan, single filter and Q-switch.
I like that alembic badge on the bodywork it's quite retro looking.
jazzyvee