[saagarjha]

Seems like it belonged to an Apple employee who passed away.

[Stratoscope]

Yes. Details are in the Christie's auction listing linked above. Scroll down to read the very interesting article about the Apple 1 in general and specifics about this particular machine.

[Teever]

Looks like it came from the Living Computer Museum.[0]

[0] https://www.geekwire.com/2017/important-computer-history-ste...