Portrait; single-sided Primary: 0.250 -.253 mm Secondary:0.149- 0.153 Tertiary:0.301- 0.2-7 mm Quaternary:0.286- 0.298 mm All supports are machine made and are not original to the primary support (see condition report). The primary support is darker cream in color and wove; smooth surface and even fiber distribution in transmitted light. The secondary support is lighter weight, light cream in color, smooth, even fiber distribution in transmitted light. The tertiary support is blue craft paper, textured surface, opaque in transmitted light due to fillers. The quaternary support is black craft paper and is also opaque in transmitted light.