Multiple game boxes for the same game

For various reasons some 18xx games have multiple game boxes on BOARD18.
This page is an attempt to assist players to select the correct game box.
It does this by describing the differences between these game boxes.

Game box disambiguation table

Game Box	Version	Disambiguation Comment
1822	DSJH07	Base 1822 game
1822	RSL07	Enhanced 1822 game
1830CR	MO01	This game box is for the Coalfields-Reading MO variant - adds gentle & tight curve yellow and trident green cities.
1830CR	PAZ01	This game box is for the Coalfields-Reading variant per the articles in the General magazine.
1830CR	UL01	This game box is for the Coalfields-Reading unlimited variant - increases numbers of tiles available.
1844	MFR02	This 1844 game box is for is the Mayfair version of 1844.
1844	ORG02	This 1844 game box is for the original or standard 1844.
1844	PAZ02	This 1844 game box is for Paul's modified rules.
1850	REP01	Limited number of plain yellow tiles
1850	UL01	Unlimited number of plain yellow tiles
1854	ORG01	This game box has the tile sets as originally supplied by O-O
1854	NEW01	This game box has the tile sets in the Mayfair version of the game
1870	REP03	Limited number of plain yellow tiles
1870	UL01	Unlimited number of plain yellow tiles
18C2C	PAZ01	Base 18C2C game
18C2C	DVZ01	18C2C D variant
18KCS	REP02	Limited number of plain yellow tiles
18KCS	UL01	Unlimited number of plain yellow tiles
18MEX	PAZ01	Base 18MEX game
18MEX	PAZ02	This version of 18MEX supports the Baja variant
18OE	JB03	Base 18OE game
18OE	JBUL2	This version of 18OE has an unlimited number of certain tiles.
18QQ	REP02	Limited number of plain yellow tiles
18QQ	UL01	Unlimited number of plain yellow tiles
FourthAge	JCR02	Limited number of plain yellow tiles
FourthAge	UL01	Unlimited number of plain yellow tiles