These two British cigarette trade cards were issued by W.D. & H.O. Wills (tobacco manufacturer) in 1926. They are part of the 50 Wills's Cigarettes 3rd series cards called “Do You Know”. In the UK, Wills in 1887 were one of the first companies to include advertising cards with their cigarettes.
The first card (no. 28) shows the anatomy of an "automatic lighter" (actually it is a semi-automatic