Gertrude —, author of 1933 book The Autobiography of Alice B Toklas (5)
I believe the answer is:
stein
(Other definitions for stein that I've seen before include "Glass" , "Earthenware beer jug" , "Beer-mug" , "Gertrude __, avant-garde US author, d. 1946" , "Large earthenware beer mug" .)