I'm researching typefaces for a small American baseball park signage program. They've identified 1948 as a key year in their history and I want to honor their heritage with typeface choices that would reflect that time period. Any suggestions of either specific typefaces or even specific styles outside of just the umbrella categories (i.e. sans serif, slab, serif, etc.). Or suggestions of places to research and even research methods regarding this type of search. Thanks in advance.