Yeah, Gibson came out with the CF-100 in 1950 and with a model with a P90 pickup the following year. The model crashed and burned commercially causing them to cut production at mid-decade and finally pull the plug on the whole project in 1959. I owned a CF-100E for number of years. Just a drop dead gorgeous instrument.
Only cutaway flattop I currently own is a late-1950s Kay K24.