My dad took this shot of the TWA Constellation he flew in from Chicago to New York in April of 1956; the wording next to the door looks like "Star of China" with Chinese characters below it, but a net search hasn't turned up any info - can anyone identify it (N-number, history, etc.) for him?
Thanks!
P.S. Extra points if you can ID the airline of the DC-6 flying by...

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All right, Mister Dorfmann, start pullin'!
Pilot: "Flap switch works hard in down position."
Mechanic: "Flap switch checked OK. Pilot needs more P.T." - Flight report, TB-17G 42-102875 (Hobbs AAF)