@daveyf a simple check of the suspension after a few years of break.
@lewm if he wants to keep a record of the cartridges entered in his laboratory he can mark the serial numbers that every 50 year old head has on it and should ask the owner if he wants to put his damned permanent signature on it.
Imagine if every hi-fi repairer put his signature on the front or on the chassis of the electronics that repairs ... Mark Levinson, Accuphase, Audio Research etc.etc. all signed by the repair technician. :(
He also treated my father’s Nakamichi MC 1000 in the same way, except that in this head he limited himself to sticking stickers everywhere, in the body, in the box, in the owner’s manual, in short everywhere, and the work (substitution cantilever and stylus) also if it was done over 35 years ago it is horrible .... maybe that day it was drunk or it was still a noob; my father first and I then after having inherited it we have never had the courage to use it in 35 years for fear of damaging the records, only now I decided to remedy the bad work by sending it to another cartridge man to do it all over again.
https://i.postimg.cc/Wzy34FqZ/Nakamichi-MC-1000-2.jpg