This International Model Aircraft Company advertisement appeared in the June 1960 issue of England's Aero Modeller magazine. The company, which went by the moniker FROG ("Flies Right Off the Ground"), had been in business producing flying models since the early 1930s. Price formats such as 17/6 for the Talisman control line model is interpreted as 17 shillings and 6 pence, seventeen and six, or seventeen and sixpence. According to the UK National Archives website currency conversion calculator, 17/6 in 1960 is the equivalent to £18.34 (pound sterling) in 2017, which is the equivalent of $24.23 U.S. That somehow seems way too low for a 1960 to 2017 price conversion.
Frog / Talisman Ad
28" Span Fully Aerobatic Profile Stunt Model
For 1 - 1 1/2 cc. Motors
Easy to Build and Fly! Kit has all balsa and ply parts accurately cut to shape, nylon bell-crank and all accessories.
For top performance fit a Frog motor in your "Talisman"
"100 Mk. II" 1 c.c. Diesel
A wide speed range and high performance is attainable with this easy-to-start motor. Ideal for beginner or expert! Develops .11 B.H.P. at 16,000 r.p.m. Bore .416 in. Stroke .460 in. Weight 2.9 oz. (Bare).
"150 Mk. 11R" 1.49 c.c. Diesel
For that extra power the "150 R" has an outstanding performance in its class. Low fuel consumption with high power output makes it an ideal motor for 1/2A Team Racing, developing .15 B.H.P. at 15,000 r.p.m. Bore .500 in. Stroke .460 in.
Weight 3 oz. (Bare).
Always use Frog nylon or plastic airscrews, from the wide range available.
Your motor will run better on Shell Fuels
Made in England by International Model Aircraft LTD.
A member of the Lines Bros. group of companies
Posted March 2, 2019