Bertha Lum (1869-1954 Tipton, IA) five costumed Japanese women in procession pencil s l/c: Bertha Lum raised line block print on/p under glass sight: 17x23 est:$1500/2500 Note: Bertha Lum did not document her technical procedures (raised line block print) and preferred that they remain a mystery Provenance: residence, Portuguese Bend, CA