Unusual Olympus

I still use a JVC D-M3 stereo microcassette deck with my stereo system.Also have a JVC MQ-5K handheld micro recorder just acquired from Germany.Have an Olympus SW-77 which served me well in the 1980s recording at concerts. Sony made an MC-1,I think it was.Small plastic cased deck for home use powered by D cells.Sony also made a very slim micro recorder which had an FM tuner shaped like a microcassette which fitted instead of a microcassette. They also made a "chunky" handheld unit with builtin AM & FM tuner.Sharp made a very heavy HiFi deck.
Metal tapes made by TDK,Memorex,Olympus,Sanyo,Sony among others.

New here.How do I insert a picture?