Make 1 Gold Every 10 minutes

Once you turn level 42 you should start heading to the Scarlet Monestary Graveyard. The instance will be on the left side in the Monestary. Make sure to be alone when doing this, you will be able to have all of the items to yourself.

At level 42 you will be able to sneak past the mobs in the very first parts of the Graveyard instance. Do not touch them, just move along.

Next, move up the stairs and you will find yourself in the normal Graveyard instance area. The mobs that you will encounter will be Elite zombies (31-32), Elite polterguists (32- 33), and best of them all (non elite) Unfettered spirits (level 31).

You should best ignore the elites in this instance. Focus on killing the spirits, they are in groups of 3 and will be very easy to kill. The best part is that they drop some items that the lites drop. You should be getting around 5-6 silver and around 1-3 silk cloths per kill.

Your average earnings in 2 hours would be around 18 Gold, uncommon items (green), 1-3 rare items (blue), and about 140 silk cloths.