Trivia: This item has the lowest ID that was available to players in the game. It was the starting weapon for newly-created Human, Night Elf, and Gnome Warriors prior to Cataclysm.
It's possible that there were lower item IDs which were also available to players, but it cannot be determined since those item IDs no longer exist in the actual game files. According to Wowhead comments, item IDs 1 - 9 were originally for Gold Coin. Item ID #7 was 1000G, so it may have been a very early in the currency iteration process.
... I can't even imagine trying to carry around my WoW gold à la Diablo. /shudder