Standard pattern reference card for Science Museum supervising warders regalia, Standard Working Pattern 1, Pattern No OS 623, Monogram and Crown, gold embossed, for collars, approved 16 January 1929, unsigned, United Kingdom, 1929

This reference card provided the design template for the manufacture of regalia for Science Museum security staff uniform. The badges and other regalia had different designs depending on the grade of warder to make each more readily recognisable. This particular pattern was the template for museum supervising warders to wear an 'SM' embossed monogram and crown on their collars.