Image ID: SIL-SIL-038-23-15
Cite this: KEYSTONE VARNISH CO. 1913. KEYSTONE FLAT FINISH, BROOKLYN NY.
Supplied Caption: Architects' Specification for using Keystona on Sand-Finish or Smooth-Finish Plastering (Laboratory of Hahneman Medical College, Philadelphia picture) Color samples 74 & 6 included.