This is a third variation for the Spratt LRI embossed: Patent/Feb.5.1850 This one is type 'C'. The right edge of the tab points towards the right edge, or at least the middle of the letter E in Patent. The top 'arm' of the letter F in FEB is very long. There are possibly other mold variations for this style of LRI. Height:1 7/8". 1 1/2" across the base. Typical deep green color. Unknown pervious ownership. Style B: [id=208196368] and Style A; [id=208195248]