1937 Proceedings of the Institute of Radio Engineers IRE Bound Volume 25 Jan–Dec Radio Engineering Valentine's Day while the nickel silver hardware

while the nickel silver hardware has developed an attractive vintage patina

Some faint stains are visible on the cap

These units were used in conjunction with WWII aircraft or radar display systems and are desirable to advanced Signal Corps

Barrels: Vent rib

1937 Proceedings of the Institute of Radio Engineers IRE Bound Volume 25 Jan–Dec Radio Engineering Valentine's Day while the nickel silver hardwareOriginal 1937 bound volume of the Proceedings of the Institute of Radio Engineers (IRE) containing Volume 25, Numbers 112 (January through December 1937). This professionally bound hardcover compilation features the influential technical papers published by the IRE, predecessor to todays IEEE. An outstanding reference covering early radio engineering, communications, vacuum tube technology, broadcasting, electronics, antennas, and related developments