To clarify some queries - the bass was purchased as a '67 violin however it's difficult to confirm exact dates. The Selmer era had a pretty arbitrary and non-sequential serial number system. Identifiable by 4 digits stamped on the headstock. Hofner experts tend to date these basses on the sum of their parts and features. There are many anomalies as Steve Russell's excellent Hofner book will confirm. The serial could make it as early as '66 and as late as '71 however the machinehead type, preh pots, logo engraved blade pickups and panel details would suggest it as a '67. Other features suggest a later date. The logo has a small gold script and thus may be a transitional logo. The fretboard has binding and dots. The nut has the earlier black and white material and the truss rod cover is the bell type. The case and Selmer strap would also suggest late '60s.
So to ensure no one is disappointed I would say this is a Selmer imported bass from between '67 and '71.
It remains a classic bass in superb condition and a bargain price.
Cheers