Portrait; single-sided Primary: 0.357- 0.362 mm Secondary: 0.290- 0.292 mm Both supports are machine made. The primary support is internally dyed a taupe color with additional presence of red and blue mixed fibers Clumped fibers in transmitted light and textured surface. The primary support is thicker than the secondary support but with less sizing (softer). The secondary support is a mid-tone warm brown support; high degree of fillers (opaque in transmitted light). The felt side of support is facing up. Same primary support and secondary support as 0227.190, 0227.140..