http://www.rscrevolution.com/viewtopic.php?id=12349

Basically random items, pots, logs, coins, armor etc.

Easy = chance at Iron or black (requires no quests done, simply visit locations and dig, or talk to people, or equip an item and talk/dig).
Medium = myth or addy (requires most quests done, able to kill lvl 85 godmage)
Hard = rune or God armors. (requires pretty much every quest done and able to get into legends guild (1400 skill), able to kill 247 god mage)

Rare chance (ive done probably 150-200 plus easy clues on one guy and finally got a drop..so it can take a while (i have about 900 leather too) of dropping (t) or (g) armor, or for hard clues some of the god armor, sara, guth or zamy.

Have a few examples in my signature of ones ive found, iron-rune plus sara chest top.

http://www.rscrevolution.com/viewtopic.php?id=12349
Rare chance (ive done probably 150-200 plus easy clues on one guy and finally got a drop..so it can take a while (i have about 900 leather too) of dropping (t) or (g) armor, or for hard clues some of the god armor, sara, guth or zamy.

That's like a 1 in 30 chance when I calculate you did 30 five-step scrolls.

It's funny, I've done many easy ones and didn't get one (t/g) piece,  but only several medium ones and got one piece each from some.