HITACHI Perdisco Demonstration Cassette

Product name: HITACHI PERDISCO
Series number: 5593081
Time period: 1980
Tape type: Type I
Songs: 1-Day Tripper (J.Lenon & P McCartney), 2-Alone Again (G. Osullivan)
Comments: It is a cassette for demonstration of HITACHI. Unlike common cassettes, the body label is upside down. This corresponds to the use of cassette teleco and radiocase that pass the cassette on the top side of the head  with the head facing up, and is believed to have been an accessory to such cassette equipment anslucent ( black smoke )