Portrait; single-sided Primary: 0.267- 0.269 mm Secondary:0.297- 0.301 mm Both supports are machine made. The primary support is internally dyed to a salmon pink with additional red and blue mixed fibers. Clumped fibers in transmitted light with a textured surface. The primary support is thicker than the secondary support but with less sizing (softer). The secondary support is brown, support; high degree of fillers (opaque in transmitted light). The felt side of support is facing up. Same secondary support as 0227.140, 0227.190.