[Antennas] Need antenna specs

[Don Havlicek]

Have in my possession a 4-el trapped yagi of unknown origin.

Some have told me it's a Mosley by looking at the traps.  They are 2" in 
diameter with encapsulated ends and black end caps with molded-in places 
to slip over the heads of the bolts securing the traps.

Another ham told me it's a Swan/Hornet trapped tri-band beam, but I 
really don't recognize it.

Any info and specs [element dimensions, etc.] would be appreciated!

Don
N8DE