Here's what I have so far for some of my favorite Hoover designs, done similarly to the work I've done with Smith-Corona typewriters.
Start of 150 1,000,001
1936 1,040,405
1937 1,080,809
1938 1,121,213
1939 1,161,617
Start of 26 2,125,001
1938 2,188,443
1939 2,251,885...