CONGRATUALTIONS!!! Welcome to the "It looks like a really nicely made frame, but I have no idea" club

At least you have head badge to start with
Popular consensus for Betty is maybe a frame built during a class in the early '80s with an "off the shelf" or later replacement fork
Ugly Betty getting new custome graphics in April 2023
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk