Hi Ian
Tappetto Magico Inc. seem to be the trust compny - the RVSM list shows this plane as operated by Subprice Ltd, which would tie in with the SP suffix. Shame I can't find anything at all about Subprice Ltd :-(
While I'm here:
N125ST - CL60 of Gulf Coast Aviation, who alos operate N404PX, N424PX and N48Y
I've also done a separate logo for FedEx Corporate Aviation, who as well as operating
GLEX N3FE have the following: N1FE, N2FE, N4FE, N5FE, N6FE, N7FE, N9FE, N10FE, N15FE, and N20FE.
Rod