[Sledgehammer427]

wow! thats in really good shape!
imagine all the ants you could burn with that magnifier.

EDIT: I can't find anything about a Radiomarine -radar- set. Nothing at all. Other than this court case

Plaintiff, Radiomarine Corporation, (herein Radiomarine) brought this action against defendant, Gulf Northern Co., Inc., (herein Gulf Northern) seeking to recover money for a loss of certain marine electronic equipment which was lost when Gulf Northern's vessels, M/V Sarah E. Thomas and the M/V W. P. Jackson, sank.
The Court being fully apprised of the premises hereby makes the following findings of fact and conclusions of law.
Findings of Fact
1. Plaintiff Radiomarine was at all material times the owner-lessor of the following marine electronic equipment: Two NIC 75 Tubular Radar Systems; One N8A-40 Marine Radar System; One P7A-150 AM Radio Telephone; One P17A-100 VHF Radio Marine Telephone; One P22A Single Side Bank Radio Telephone; and one P17D-50 Radio Set.
2. At all material times, defendant Gulf Northern was the owner of two river towboats, the M/V W. P. Jackson and the M/V Sarah E. Thomas.
3. In February of 1968, a NIC 75 Tubular Radar System, a P7A-150 AM Radio Telephone and a P17A-100 VHF Radio Marine Telephone were installed on board the motor vehicle Sarah E. Thomas.
4. On February 13, 1969, a P22A Single Side Band Radio Telephone was installed on board the motor vehicle Sarah E. Thomas, and on March 15, 1971, a N8A-40 Marine Radar System was installed on board the motor vehicle Sarah E. Thomas.

That's all I could find after about 35 minutes of digging. I wish I could be of more help.