17 Oct
2005
17 Oct
'05
2:08 p.m.
They were good for quick corrections.
They also got a little use when the cards were used for inventory
control. Sometimes a shipper would send a folded (gasp!) card with a
shipment, and the card could be returned for RMA and other functions. A
hand punch was all that was needed.
I have a few cards from some of the big tube makers - RCA, Tung-Sol - and
they would sometimes cram a folded card into a tube box, with the tube.
William Donzelli
aw288 at osfn.org