I don't think it was an in service option: with the control cables and chain running up different sides of the fin
Hi
Belli, just for interest I looked up the serials of the four 205's we had, three 205A modded to -1 standard (serials 2, 5, 34) and a -1 serial 81. When modded no idea but before I joined in 1977.
I'm presuming Bell would and have pulled a 204 off the production line and allocated it to the military
It comes from one of a bulk buy (31) by the Air Force and Navy, presumably they all have identical plates, you can see the plate carries a USA military serial which is usual for supply to an overseas military.