American printmaker and lithographer. Gruenwald has worked in print shops in New Mexico, Chicago and Milwaukee. Gruenwald moved to San Francisco in the mid 90’s where the focus has been on his own artwork: printmaking and oil painting. For three years, he partnered with Terry Chastain in Tinhorn Gallery, a storefront print gallery and studio in Hayes Valley, until opening the current incarnation of Gruenwald Press on Mission Street in 2005.