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This is an American ribbon/velocity microphone with a bi-directional polar response that was manufactured circa 1950.

This is a dual element American microphone, which uses the Dynamic/Moving Coil element with the Ribbon/Velocity element. It has a Multi-Pattern polar response. It's date of manufacture is uknown.

This is an Amperite ribbon/velocity microphone with a bi-directional polar response and an unknown date of manufacture.

This is an Amperite ribbon/velocity microphone with a bi-directional polar response and an unknown date of manufacture.

This is an Amperite ribbon/velocity microphone with a bi-directional polar response and an unknown date of manufacture.

This is an Amperite ribbon/velocity microphone with a bi-directional polar response and an unknown date of manufacture.

This is an Amperite ribbon/velocity microphone with a bi-directional polar response and an unknown date of manufacture.

This is an Amperite ribbon/velocity microphone with a bi-directional polar response and an unknown date of manufacture.

Postcard depicting the personification of the United Kingdom and their status on woman suffrage compared to other European countries