HR Highland Railway numerals & Thirds. The larger (7-inch prototype) - numerals are for Drummond/Cumming front bufferbeams, coach sides and tender-backs. The smaller (4-inch prototype) - numerals are for coaching stock sides, earlier gangway ends and tender-backs. 'No' with high underline beneath the 'o' is the correctly-spaced design for Cumming bufferbeams and Sleeping Carriage sides, whereas the low-underlined version is for application to Small Ben Class loco bufferbeams. 'Third' is the short door version of this branding, more of which will be found on sheet FRH - 7513. Overall sizes - Large numerals 4.5mm high. Smaller numerals 2.5mm high.