Staying with the "era accessories" theme, how about some gauges:
...a Red Ball MotoMeter temperature gauge:
.....some Rochester and Milwaukee oil pressure gauges:
....some APCO, Rex-A-Co, Rochester, Tiffany, NAGEL Electric, etc water temperature and oil pressure gauges:
...and some Boyce MotoMeter Red Ball Model A (note the "A" logo on the lower part of the face) temperature gauges, etc:
Brad in Maryland