Rickresource Rickenbacker Forum

A newbe here:
I own an original 4003 jetglo.
A few weeks ago i bought a 4001 copy (I know....shame on me)
I can't find anything on the brand "Custom".
That's what it says on the headstock.
The neck is a bolt-on.
The previous owner thought it was built in 1975.
The neckplate says: made in Japan.
Is ...