This is the iconic Sony walkman from 1978 model TCM-600B the predecessor of the commercial TPS-L2 which production started 3 years later. This is a far more better device, more compact by my own opinion than the TPS-L2. The device is kept in excellent condition, WORKING, with excellent transmission, which was by the way used in the TPS model as well. 
The belts are changed. It is a cassette player and a recorder in the same time. It was used at the time by many journalists as a voice recorder, providing high quality recordings. 
There is a small thin crack on the plastic cassette cover. 
Excellent piece of electronics history by Sony. 
Dust off your old tapes and experience the nostalgia of the past with this classic Sony walkman.

This item will be send by DHL Express and will be in your possession in a very short period of time ( 2-5 business days anywhere in the world).
For any kind of information you can contact me at any time you want, don't hesitate to ask.