From the Brian Coe "kodak cameras: 1st 100 years", it says it was introduced in 1933 & took 620 film.
And in the Jim McKeown booj "kodak cameras", in one section it says that when they introduced 620, they changed the format for one of their cameras, the "Boy Scout Brownie" from 120 to take 620 film, & that Kodak LTD. UK & Kodak AG switched to 620 film, so chances are it took 120 at first then got switched to 620
The camera I acquired this time is a Hawkeye Major from KODAK UK, and according to "THE FIRST HUNDRED YEARS," it was manufactured only during 1935. It's unclear whether cameras for 620 and 120 type were manufactured in parallel, or whether they started with the 120 type film and then switched to the 620 type, or whether production started with the 620 type but then switched to the 120 type due to its unpopularity.
McKeown's Collectors Guide mentions that the Boy Scout Kodak was switched from the 120 to the 620 a few months after its release, but makes no mention of the UK-made Hawkeye Major.
I've read this book so much that the cover is worn out.