What is the value of a Winchester model 94 30-30 lever action sereal no 1100918 1938?

The collector value of your February 1936 vintage Model 94 can only be assessed by a visual inspection & evaluation (appraisal). Old Winchesters are very much like old classic automobiles... the graded condition, the factory originality, and the specific configuration are the key factors in determining what they are truly worth.