[ARC5] WWII VHF antenna question

[jay.coward at avagotech.com]

Hello Group,

 Can someone elaborate on the AN-104 and AN-74 mast antennas? I know that SCR-522,ARC-1 and ARC-3 used the AN-104. The only google I got for AN-74 was a surplus house selling P-51 antennas for +400.00 USD!

 They look similar but the AN-74 has a metal sheath.

 Thanks,

              Jay