Wab, Clewco, or Cormwell? No markings on my 14k 6085 rivet stretch band..

[adiorandomhero93]

Is there anyway to tell? There are no markings on the band or clasp and if there were they have been polished away. There isn't even a Rolex crown on the clasp. Iv been told its all original and that Rolex outsourced its band to those 3 companies in the 40s and 50s. The serial on the watch dates it to 1951. Does anyone know or is there a way to tell who manufactured this band and clasp? Here are some pictures, thanks guys!!