1910 3½ h.p. White and Poppe SV single cyl., SV
1910 JAP 3½ h.p. SV single cyl.
1910-1913 Precision 3½ h.p. SV 499 cc single cyl. 85 x 88 mm
1911-1912 New Lightweight single cyl., SV
1911 Precision 3½ h.p. SV Touring 511.2 cc single cyl. 86 x 88 mm.
1911 Precision 3½ h.p. SV TT 511.2 cc single cyl. 86 x 88 mm.
1913 Precision 3½ h.p. OHV TT 499 cc single cyl. 85 x 88 mm
1913 Green Precision water cooled 3½ h.p. 499 cc single cyl. 85 x 88 mm.
1913 Precision 4¼ h.p. SV 610.7 cc single cyl. 90 x 96 mm.
1913 6 h.p. Precision V-twin SV 751 cc 75 x 85 mm
1914 3.5 h.p. Standard Touring 499 cc single cyl. 85 x 88 mm, SV, F.E.Baker 3½ h.p.
1914 4 h.p. Precision V-twin Standard Touring 497.6 cc twin cyl. 60 x 88 mm, SV, V-twin 60°, Precision 4 h.p.
1916 Calthorpe ladies 1916 243.3 cc single cyl. 67 x 69 mm, two-stroke 2¼ h.p.
1916 Twin Lightweight Combination 496.4 cc, 70 x 64.5 mm, SV JAP 4 h.p. V-twin.
1927 D.6.A Sports 348.4 cc single cyl. 74 x 81 mm, OHV 3½ h.p.
1927-1928 D.6.S OHV Super Sports 348.4 cc single cyl. 74 x 81 mm, OHV 3½ h.p.
1927-1929 G.1 498 cc single cyl. 84 x 90 mm, OHC 5 h.p.
1928 OHV Popular 1928-1929 348.4 cc single cyl. 74 x 81 mm, OHV 3½ h.p.
1928 "Speedway Special" 1928 348.4 cc single cyl. 74 x 81 mm, OHV 20 h.p. @ 6,500 rpm
1930-1939 Ivory 250 "Minor" 246.8 cc single cyl. 67 x 70 mm, OHV, twin port, Villiers patent
1929-1939 Ivory 350 "Junior" 348.4 cc single cyl. 74 x 81 mm, OHV, twin port 16 h.p. @ 5.200 rpm
1932-1939 Ivory 500 "Major" 493.8 cc single cyl. 85.5 x 86 mm, OHV, twin port 22 h.p. @ 5.200 rpm
1936-1938 Special Competition 493.8 cc single cyl. 85.5 x 86 mm, OHV, twin port
1937 Ivory 350 350.1 cc single cyl. 72 x 86 mm, OHV, twin port
Sources: A. Vassiliadis, et al
