A large quantity of wireless headphones

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A large quantity of wireless headphones
Mostly 4000 ohm, boxed and unboxed and some single headphones in circular boxes, by Brown's, Ericsson and others; a set of ten Igramic loading coils, ranging from 25 to 500 metres, helical wound with ebonite terminal bosses; an unmarked crystal set; and a battery box with ebonite top enclosing four Siemens 643 batteries (qty)

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