The Baker L-Grade is a pretty scarce item. It doesn't appear in a Baker Gun & Forging Co. catalogue Daryl identified to me as 1905. It is in the next catalogue I have which he speculated circa 1906 --
It was also shown in magazine ads in November 1906. This from
Outdoor Life --
By issue 4 of
The Baker Gunner for 1909 there is no L-grade.