Baldwin Class System
first number = Total no. of wheels (lead, driver, & trailing wheels)
second number = locomotive size, based on diameter of the cyliners
Fraction after the second number = either information on wheel arraingment or indicates a larger cylinder size for an exsisiting class
Letter = wheel arraingment
The class may be followed by a number, indicating the consecutive number of the loco built to this class in order of construction.
The class is sometimes followed by a plan number.
Cylinder size
	8 = 7" diamiter
	10 1/2 = 8" diamiter
A cylinder size show as a fraction is a compound locomotive, indicating diamiter of the high and low preasure cylinders respectivly
A cylinder size which includes a fraction means
	1/4 indicates the truck(s) are placed at both ends of the locomotive
	1/3 indicates the truck is placed at the rear of the locomotive
	1/2 indicates a larger cylinder size
Letter code
	A	Special class of high speed locos with one pair of driving wheels and rack locomotives
	B	one pair of driving wheels
	C	two pair of driving wheels
	D	three pair of driving wheels
	E	four pair of driving wheels
	F	five pair of driving wheels
So,
	4-x-c	0-4-0
	6-x-c	2/4/2000