[Arran]

So this set would have had to been assembled no earlier then March of 1933? I'm wondering if Philco may have had a limited production run of these cabinets for another year, considering that the 570 came out in the fall of 1931 and was replaced by the 71GC in June 1932. It looks like the convention of Philco was to introduce new models in the fall and spring of every year. So either they made way to many cabinets or someone in management liked the long case grandfather cloth cabinet so much that they built them on a limited production basis.
One thing about a cabinet shop is that they can pretty much build things to order as long as they have the jigs and tooling. I could see having a surplus of one type of cabinet over the course of a week or even a month but not six months to a year.
Regards
Arran