This early sales brochure was printed by the Parry Manufacturing Co. and it featured bodies made by the Parry Manufacturing Company.  There is no mention of bodies by the Martin Truck and Body Corporation.

The title page says:

Martin-Parry Corporation

Owners of

Parry Manufacturing Co.

Martin Plant                          Parry Plant

York, Pennsylvania                  Indianapolis, Ind.

Apparently this brochure was printed prior to the Martin-Parry Corporation having a Company logo as I do not find the logo anywhere in the brochure.