Unknown US Badge

[Dr_Shemp]

Hi all,

I bought the attached badge a few months ago and haven't been able to determine exactly what it is. It has the makers mark 'N S Meyer Inc New York' on the reverse and 'Ballou Reg'd' on the butterfly clasps.

I've had a good Google around about the badge - I found this unresolved Reddit Post that suggested it might be an 'Aviation Warfare Systems Operator' badge. I found an example here and whilst they are similar, they're not identical.

Does anyone have any thoughts about what this badge may be? Many thanks for your time.