414's in gold-not common

[Old Guy]

It may be more than coincidence that they used a mixture of Altec and Utah components.

Altec had a working relationship with Utah going back into the 1940's. The field coil 601 duplex was built on a stamped Utah frame. Early 412 bi-flex, and 600B's were built on 12 inch Utah stamped frames.

Utah made a few decent speakers before they became Pyle