I was told it was RCC.. A funny story is that approx two years ago I was at the local tip on the Gold Coast and purchased The Flight manual of RCC s/n33 plus a few WAC's for $2.. I couldn't believe it!!! It had a few BP & Shell expired Carnets in the name of Pel-Air in Sydney.
Anyway after acquiring the flight manual I became quite interested on the whereabouts and was told by PG at Seair (who operates the original VH-MSF) that it was sitting all sad at broken hill and that he had in the past taken a few bits off it for the real MSF..
Another interesting website has all the serial numbers and rego's of ex Aussie Nomads is;
http://www.geocities.com/CapeCanaver...7774/nomad.htm
But i guess if you really want to make sure which aircraft it is the serial # is in the nose locker on the left hand side.
Cheers
