What does reo stand for in reo spedwagon?

Ransom Eli Olds. hence REO also means in Latin ( of the King) hence a crown trade mark. the more recent Diamond Reo trucks have an elongated Diamond ( red) with gold or white lettering and over that in the center- a Crown. so a crowned diamond. Similar but colors different to KLM badge used in the sixties ( a.k.a.- the Philips Line)