Here are some odd Japanese scales for ya...including "T":
Japanese
While there are Japanese model railway manufacturers that export their products to other parts of the world and follow the scale standards of the export destinations, in Japan there are several domestic scales that are popular in the country but virtually unknown elsewhere. International NEM and NMRA scales are also used by some Japanese modellers. The main reason for the domestic scales different from international standards is the smaller prototype loading gauge and unusual gauges of Japanese railways: 600 mm (1 ft 11 5⁄8 in), 762 mm (2 ft 6 in) and 1,067 mm (3 ft 6 in) (International standard gauge of 1,435 mm (4 ft 8 1⁄2 in) is also used).
Scale Ratio Gauge Notes
T 1:450/1:480 3 mm (0.118 in) Launched at 2006 Tokyo Toy Show by Eishindo Co.
ZZ 1:300 4.8 mm (0.189 in) Introduced 2005 by Bandai
ZJ 1:220 6.5 mm (0.256 in)
N 1:150/1:160 9 mm (0.354 in) The most popular scale in Japan. For the models of Shinkansen highspeed
trains with a larger loading scale, the international N scale standard ratio
of 1:160 is commonly used.
TT9 1:120 9 mm (0.354 in) Used also in New Zealand.
HOn2½ 1:80 9 mm (0.354 in) Used for 2 ft 6 in (762 mm) narrow gauge.
HOj (12mm) 1:87 12 mm (0.472 in) Correct for 1,067 mm (3 ft 6 in) Japanese narrow gauge.
13mm 1:80 13 mm (0.512 in) Correct for 1,067 mm (3 ft 6 in) Japanese narrow gauge.
HO or #16 1:80/1:87 16.5 mm (0.65 in) Used for ready-to-run models. For the models of Shinkansen high speed
trains with a larger loading scale, the international H0 scale Standard
ratio1:87 is commonly used.
Sn3½ 1:64 16.5 mm (0.65 in) Used for ready-to-run models.
- 1:50 20.5 mm (0.807 in) Static models mostly.
OJ 1:45 24 mm (0.945 in) Correct for 1,067 mm (3 ft 6 in) Japanese narrow gauge.
O 1:45(1:40-1:42) 32 mm (1.26 in) 1:40-1:42 used about 1930s.
35mm 1:30 35 mm (1.378 in) Used for 1,067 mm (3 ft 6 in) Japanese narrow gauge.
45mm 1:30 45 mm (1.772 in)
I hope that this is of some use......many models in these scales are still available in Japan
