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Box 1 Folder 6: "Box 1 folder 6 is from 1940 approximately. It’s a General Radio Company pamphlet, an instruction manual for a Type 25 A Broadcast…
Box 1 Folder 6: "Box 1 folder 6 is from 1940 approximately. It’s a General Radio Company pamphlet, an instruction manual for a Type 25 A Broadcast…