The F. J. Rector
& Company was founded in 1924 by Frank J. Rector of Pendleton,
Indiana and manufactured this coil for only a couple of years.
It's not known if the company manufactured anything else
afterwards. The design of the coil is similar to that of a
coil RCA used in their Radiola III series radios. The coil,
that is featured above, is assumed to be a later design since the
illustration of a similar coil, on the box's label, shows some
slight variations. I acquired this coil from an ebay auction
in September, 2005.