2 appear to be pre-1957. They use the Socony-Vacuum-Mobilgas brand. One is of New York State and the other is of Northern New England.
The other appears to be pre-1966. It has the Mobil brand, but not the Noyes designed logo that's been used since then (the red "o" between blue letters.) This one is of southern New England. I noticed some typos. Proposed I-495 in Mass. is labeled I-445 and I-95 in Westchester Cty N.Y. sports a I-98 shield.
They weren't in mint condition, but it was $6 for the trio.