Eastman lists the two inlay chips...
Larry Eastman's guide lists the 50 Cent and the $1 inlays as being from the Brass Elephant at 5950 Auburn Blvd, Citrus Heights 1975-1979. I think his attribution is pretty solid. That is a pretty short time for them to have had two different issues. Also the difference in the names - "Brass Elephant" -vs- "World Famous Brass Elephant" - sounds like two different places. I can not verify that the $5 is from LV but that is the story I heard some time ago. Please let us know if you get any more info....