diff -r 7816f447a0ed -r 617526555d1b src/ai/api/ai_types.hpp
--- a/src/ai/api/ai_types.hpp	Sat Jun 07 16:05:03 2008 +0000
+++ b/src/ai/api/ai_types.hpp	Sat Jun 07 21:50:12 2008 +0000
@@ -14,7 +14,7 @@
 class CommandCost;           //!< The cost of a command.
 typedef uint16 EngineID;     //!< The ID of an engine.
 typedef uint16 IndustryID;   //!< The ID of an industry.
-typedef OverflowSafeInt64 Money; //!< Money, stored in a 32bit/64bit safe way.
+typedef OverflowSafeInt64 Money; //!< Money, stored in a 32bit/64bit safe way. For AIs money is always in pounds.
 typedef uint16 SignID;       //!< The ID of a sign.
 typedef uint16 StationID;    //!< The ID of a station.
 typedef uint16 StringID;     //!< The ID of a string.