Details
American receivers:
a Trego five-valve receiver with three controls on sloping front panel and hinged lid -- 20in. (51cm) wide, 1924; A Crosley 'Pup' single-valve receiver with exposed valve on near-cubic metal case; and a Howe crystal receiver on small metal case -- 3in. (7.5cm.) wide) (3)
a Trego five-valve receiver with three controls on sloping front panel and hinged lid -- 20in. (51cm) wide, 1924; A Crosley 'Pup' single-valve receiver with exposed valve on near-cubic metal case; and a Howe crystal receiver on small metal case -- 3in. (7.5cm.) wide) (3)