1186 Canada #CL13e 1926 Patricia Airways Cover with “FED” Signature on CL13 stamp in red. A Patricia Airways corner card cover flown from Toronto to Red Lake on DEC.18.1926. Back of cover shows a map of the flight path and is franked with a CL13, tied by Red Lake postmark dated DEC.20. The red FED signature on the stamp is from F.E. Davidson, the company’s financier. A rarely offered cover, very fine. Unitrade CV C$1,850.