1941=L...they started the techs in 1939 to 1973. it seems right. You may be confused due to the lettering system loop, the lettering system restarts in 1930 with letter A, it finishes in 1954 wirth letter Z. It restarts with letter A in 1955 and finishes with letter Z in 1979. It restarts again in 1980 with letter A. You looked at letter L and thought it was made in 1966 i presume...it's really 1941 L. (I hope i did'nt confuse the bejoinkers out of you.)
__________________