Three locomotives are known to have received the large 6-1/2 foot square heralds:
4-6-4 3461 May, 1940 Two heralds on square 20,000 gallon tender
4-6-2 3420 1940 Two heralds on square 20,000 gallon tender
4-6-4 3452 1940 One herald on stepped 15,000 gallon tender
None are believed to have survived 1944. These three engines were Eastern Lines engines, and normally ran Chicago-Kansas City-Houston.
The billboard 24-inch SANTA FE lettering also began to be applied to large tenders in 1940, although smaller tenders did not receive the railroad name and soldiered on until retirement with just the engine number painted on the side.
Source: Larry E. Brasher and Stan Kistler, Santa Fe Railway Steam Locomotive Painting, Lettering & Detail Guide for Model Railroaders. Santa Fe Railway Historical & Modeling Society, 2007