Hi,
I have a 1938 Cadillac Series 65 and would like to learn about your "in hose poppet thermostats". I saw an article in the Cadillac LaSalle Club bulletin saying that you had these in the radiator hose thermostats.  If you don't carry something like this, please let me know who might.  I do not wish to replace my bellows thermostat in the upper radiator tank.
Thank you for any assistance you can offer.
Paul