sentences:  On March 1, 1921, Route 5-b was eliminated while Route 38-a became part of Route 39, which continued west along what is now US 20 from Sharon Springs to the town of Madison.None of former Route 5-b nor the portion of Route 39 south of Sharon received a signed designation when the first set of posted routes in New York were assigned in 1924.In the 1930 renumbering of state highways in New York, all of former legislative Route 5-b was designated as NY 145 while the Cobleskill–Sharon segment of former legislative Route 39 was assigned NY 164.