N scale derives its name from the letter N as its gauge - the space between the rails - is 9 mm. Nine begins with N in most European languages. N scale (1:1/160) is approximately half the size of the better know HO scale (1:1/87). N scale originated in West Germany during the early '60's by the Rapido Company, it became popular with apartment and condo dwellers as a 2 by 4 foot area can contain a complete operating layout.