Rectangular slip case in painted leather and with a fold-over flap top scalloped at the end. Decorated with stamped, painted and gilt motifs, lined with silk damask. The pattern consists of diagonal rows of vesica-shaped compartments each enclosing a flowering iris-plant. The ground is stamped with a diamond-diaper. The yellow silk lining is damasked with a diamond-trellis enclosing open diamond shapes. For an official letter (Firman).