O scale (or O gauge) is a scale commonly used for toy trains and rail transport modelling. Introduced by German toy manufacturer Märklin around 1900,...

background (distance) with HO scale (1:87) in the foreground. mixing 1:43 scale, 1:48 scale and 1:50 scale die-cast models with O scale model trains. using Matchbox...

Cherry Valley O Scale is a not-for-profit club dedicated to the promotion of 2-rail O-scale (1:48) model railroading, located in Merchantville, New Jersey...

This is a list of scale model sizes, listing a variety of size ratios for scale models. Super Series - 1:1400 Scale, Modern Brands website (accessed 2017-06-21)...

gauge tracks and trains in HO. The name HO comes from 1:87 scale being half that of O scale, which was originally the smallest of the series of older and...

scale sizes are internationally standardized, with the notable exceptions of O scale and N scale. There are three different versions of the "O" scale...

challenged the predominant O scale (1:48) manufacturers such as Lionel with a fully developed line of 1:64 scale and semi-scale equipment marketed under...

7 mm scale, also known as British O scale is a model railway scale of 1:43.5 (or 7 mm to 1 ft; hence its name). The scale is thus different from American...

mostly in O scale and S scale, to describe a "compromise" form of modelling that strives for realism while accepting the compromises in scale associated...

Atlas Model Railroad Company, Inc. makes scale models in N scale, HO scale, and O scale. The company is based in Hillside, New Jersey, United States. They...

1:43 scale is a popular size of die-cast model cars in Europe, Asia and the US. It has its origins in the British / European O scale for model trains...

This scale is similar to O scale used in model trains and 1:50 scale will appear compatible with 1:48 scale models as produced by US manufacturers of O scale...

in HO scale, N scale (1:160 and 1:148), On30, 00 gauge, HOn30 (H0 scale on N tracks) and G scale. They also own the Williams line of tinplate O gauge...

based in Switzerland. Lemaco produces models at almost any scale, like HO scale, O scale, N scale, 1 gauge and 2 gauge. After 30 years spent at Fulgurex,...

trains, where it is known as "O scale". 1:48 is also a popular scale among Lego enthusiasts, since it is approximately the scale of the Lego minifigure relative...

the following table the various grading systems are compared (the IDC-O scale is not comprised because it is not considered a real grading system): WHO...

railways in O scale on HO (16.5 mm / 0.65 in) gauge track in 1:48 scale ratio by American and Australian model railroaders, in 1:43.5 scale ratio by British...

model trains in O scale but due to competition, particularly by Märklin H0 scale, began the transition to H0 in 1954 with their final O scale set being manufactured...

obscure Lionel competitor from the 1950s, and its product line shifted to O scale. Williams eventually discontinued its tinplate offerings, selling the old...

popular scales are: G scale, Gauge 1, O scale, S scale, HO scale (in Britain, the similar OO), TT scale, and N scale (1:160 in the United States, but 1:148...

and O gauge trains. Of these, O gauge is the most popular. The modern standards for toy trains also include S gauge, HO scale, N scale, and Z scale, in...

2000, approximately O scale (1:44). Corgi Toys; Nos. 275 and 281 (production 1968–70 and 1971–73), Rover 2000 TC, approximately O-scale (1:44). Corgi Toys;...

The Kardashev scale (Russian: шкала Кардашёва, romanized: shkala Kardashyova) is a method of measuring a civilization's level of technological advancement...

by insulating fibre washers. Post-war, there was a shift from O gauge to half-size scales of HO and OO. Improved technology at this time, particularly...

application suite Out-of-order execution (OoO), a paradigm in microprocessors OOO gauge, an old British model railway scale Object-oriented ontology, a metaphysical...

Founded by Joe Giannovario in 2002, O Scale Trains Magazine was one of the first magazines dedicated to the two-rail O scale modeling community. Upon Giannovario's...

holds the MTA license for the NYC Subway cars in O scale while Walthers holds the license in HO scale after acquiring Life-Like. The license transfer is...

Weyerhaeuser #120, SKU 2421250. Standard O scale, introduced 2011. The discussion on their web site seems to indicate that C&O and W&LE engines were also offered...

Riley Pathfinder, approximately O scale (1:44). Corgi No. 205M (production 1956–59) Riley Pathfinder, approximately O-scale (1:44) with friction drive. Corgi...

protocol is considered scalable with respect to network size, if the size of the necessary routing table on each node grows as O(log N), where N is the...