Editing N scale (section)

=== OOO models ===
In 1961, [[Lone Star Toys|Lone Star]] introduced some of the first (1:160) N scale models branded as [[Lone Star Toys#Trains|Treble-0-Lectric]] (OOO) into the United Kingdom.<ref name=Smithpart2>{{cite web| url=http://davidksmith.com/postage-stamp-trains/chapter-1.htm| title=Part 1: Beginnings & Introductions| website=All About Aurora Postage Stamp Trains| first=David K.| last=Smith| access-date=May 3, 2020}}</ref><ref group="note" >As an aside on the perennial question of whether British '00' gauges use letters or numbers, Lone Star named their product the 'Treble-0-Lectric' (with a zero) yet described this as gauge 'OOO', with three letters.</ref> The original die-cast metal models were push along and gauged to run on a die-cast trackwork having a gauge that was closer to {{track gauge|8mm}}. Coupling was by a simple loop and pin arrangement.  The novelty of the "Lone Star Locos" line was such that they even found their way to the United States and were sold in the toys area of major department stores like J.J. Newberry.

Electrified models followed soon after. The track gauge was widened to a nominal {{track gauge|9mm}} and rails were isolated with nonconductive ties (sleepers) for [[Direct current|DC]] operation. Gearing between the motor and the axles at such a small scale was done by rubber bands, rather than the usual worm gear. A different coupling based on a shrunken OO scale coupling was fitted.  The OOO couplings and specifications have long since been replaced by commercial N scale manufacturers.