Anthracene Blue SWGG extra in powder on piece goods.
Date: mid 19th-mid 20th Century
Dimensions: 7 × 11.9 cm (2 3/4 × 4 11/16 in.)
Collected in: Britain, Leeds
Published in: German
Description: This small booklet has two swatches showing the Anthracene Blue extra in powder on piece goods. It indicates the percentages of the dye needed for each sample.