[Boatanchors] Info Wanted on FAA Antenna Relay

[Mister Mike]

A friend of mine gave me this beautifully made FAA Coaxial Relay, model Type FA5388 Contract FA2345 made by Artisan Electronics of Morristown NJ.

It exactly resembles a Dow-Key relay.  I am trying to determine the coil voltage rating.  It is not marked anywhere.

Anyone have any ideas?  I will be following this question on this newsgroup.

73,

Michael, W1RC