Paid $131.88 total including shipping in July 2022"New 12-15-82" is written in ink on the front - "63 sec" is written in ink on the back.
The same seller of the two "Service Test Disc" & "Zenith Field Service Disc" told me he bought out former repair shops in the 80's for his repair shop, where he used these to service CED players in Connecticut.
