Squire Car Manufacturing Co. was incorporated in january 1934 and the prototype car (X101) was first tested in summer that year. The first Vanden Plas body was fitted to that car in February 1935 - it is described as light blue with silver upholstery, which seems to be what your photo shows.
As the list I have from some time ago shows X101 to be one of the two short-chassis cars in the USA (X102 was the other) I presume it is the prototype, formerly in the Harrah collection.
All this because I'd say it is not 1933, but either 1934 (when the car was first completed) or 1935 (when the car was first completed in this form).