This is a rare c1920s-30s vintage leather colour swatch booklet produced by DOCKERS’ SUPERFINE COLOURS c/o DOCKER BROTHERS BIRMINGHAM&LONDON.This company had three different addresses in London, Birmingham and Belfast and produced paints in Goldsize or Turpentine inc Motor Enamels Special Oil Varnish Medium , Nitro-Cellulose, Syntholux and Thermolux.This booklet contains 60 different colour combinations and it is in a very good condition with obvious signs of age as the backing colour is starting to crack and break up on a few of the swatches.The booklets overall measurements are 13.3cm long x 8.2cm wide x 6.5cm deep.