Yep, Reg. Nice clock! That's the period. The 1930's. After the crash of '29, we went through a technological period kicked off by the Burlington Zephr, DC-1, and many other streamlined planes, ships & trains that morphed into industrial designers like Raymond Loewy transforming product lines from toasters to refrigerators to, well, clocks, into this new style that promised hope for the future.
Your clock is a classic example how how far reaching the Streamline Moderne was. You still see old buildings with that style lettering or design with rounded corners and the "speed lines" like your clock.
I used to ride the passenger trains of the Southern Pacific Railroad in the SF Bay Area when I was a kid in the sixties, and they were running old cars built in 1936-41 whose interiors were pure metal decoration. Grilles, port holes, trim, etc.
In this furniture piece I incorporated all the motifs that I liked about that era.