Sony Liberty LBT Series Cassette CD and Accessory Case SU-V525 (Used) Made in Japan
This Case was sold by Sony in Japan Throughout the 80s and early 90s as an extra Accessory for their LBT (Liberty) Series of Separate Components. (See Picture 4)
You can use it to fit Cassettes, CDs, Headphones, Operating Manuals and any other Audio Accessory you may want to store in it, such as Plugs and Adapters. (See Pictures 5 and 6)