Thanks for sharing your Chiefs with us, history-fan.
I have no idea where you got the idea your Chiefs Special was
built or shipped in 1950, but it's fiction.
I'd bet the value of my home your Chiefs Special did not ship in 1950.
Most close to your serial number shipped in 1952.
The highest known serial number shipped in 1951 is 1825. None
of those had a smooth ramp front sight, like yours. The earliest
(unconfirmed) smooth ramp front sight is serial number 2452.
All known Chiefs before it had a half-round front sight, like the
photos of my serial numbers 72 and 99, which both shipped in
1951.
According to Dr. Roy Jinks, S&W's renowned historian, beginning
on October 24, 1950, the company "completed" perhaps 112
Chiefs in 1950. Granted, the company neither produced nor
shipped revolvers in serial order, but the thought it produced
serial number 63xx in 1950 is not feasible.