L.G. ………………Liberty Glass Company, Sapulpa, Oklahoma (1918-c.1995), mark used c.1924-c.1936. Note that periods are used.
L-G………………..Liberty Glass Company, Sapulpa, Oklahoma (1918-c.1995), mark used c.1934-c.1967. Note that mark includes a dash.
L G………………..Liberty Glass Company, Sapulpa, Oklahoma...