it's a one-off built by an individual who later became renowned in the classic car community by putting together another car from components of a very-well known brand.
Were the components of this other car from an American brand that is still active ?
The other car was built in 1950 from components of a car, whose manufacturer was long gone by the outbreak of the 2nd WW.
Was that manufacturer still active in 1920 ?
yes, until 1924
My initial thought was that it should be simple to identify the manufacturer whose components formed the basis of the later car by this builder. After all, there are not many "very-well known" American automobile manufacturers that ceased production in 1924. However, after re-reading the exchange above, I notice that oko94 asked if the other car was based on an
American brand that is still active, yet your response only addressed the "still active" portion of this question. So my question is this:
Was the "very-well known" manufacturer American as well?