Girl Guides 1920 9 carat gold thanks badge

A very scarce original 1920 early period 'Girl Guides gold thanks badge', the reverse impressed with Birmingham 9 carat gold hallmarks for 1920, maker's details 'JAW&Co' (J A Wylie & Co) and 'Rd No. 668015' a Registration, Design and Patent number for the year 1919. Very good condition, no defects to the enamel. Diameter 24mm.