The "L" grade is a fairly rare gun. As stated, there are two shown on the Baker website. They were only offered for three years according to the Baker Gunners. These guns were not marked as to grade. They are easily identified by engraving and checkering patterns along with the serial number. The serial number from that grade also includes other higher grade Bakers.
If you want to send me photos of the gun, I'll be glad to identify it for you, or you can post photos on this site.
Chris
hiflyer34@hotmail.com