RH s. b.r. "CHAS / R / MACKINTOSH." DES MACKINTOSH, Charles Rennie; (Scottish; 1868-1928) This symmetrical, highly stylised design shows the influence of the 'Spook School' designs of Mackintosh's contemporaries, Margaret and Frances Macdonald and J. Herbert McNair. The design appears to show two young students deriving inspiration from art and a tree of knowledge. (See also GLAHA 41097).