Spiny Norman said:

Restored footage of the Pan AM Martin M-130 “China Clipper”, the plane that shrank the Pacific

This was the first of three Martin M-130 four-engine flying boats built for Pan American Airways and was used to inaugurate the first commercial transpacific airmail service from San Francisco to Manila on November 22, 1935.

https://x.com/OnDisasters/status/2040072831019692124

Think there were Martins still in use as fire fighting units in Canada long after they’d vanished from the long flights