Fidelity Research FR-7 MC Cartridge Excellent condition

I bought this as a true NOS piece from the former Canadian distributor for FR.  He had kept it as a display piece all of these years.  I've played it less than 30 hours and you can see from the pictures that there's not a mark on it.  You'd be hard pressed to find one in a nicer condition!
He sent it in an FR box however the serial # on the box doesn't match the cartridge #.

Thanks for looking and buy with confidence of its condition.