NOTE: Sid Lethbridge - Assignment is based on US Patent No. 290,967 issued December 25, 1883.
NOTE: Sid Lethbridge 2023: [There is another, similar caster set identified in this Index as PATENTED CASTER SET. Here is the other caster set designated as No. 45 in an 1887 Missouri Glass Co. catalogue. They were a wholesaler and in this particular catalogue used the OMN. It is unlikely that both versions had the same OMN.