RuneScape Classic Wiki
RuneScape Classic Wiki
The main RuneScape Wiki has an article on: Bronze Long Sword
The Old School RuneScape Wiki also has an article on Bronze Long Sword.

A Bronze Long Sword is the weakest long sword in RuneScape Classic and has no requirements to wield. They can be made using the smithing skill at level 6 from two bronze bars, resulting in 25 smithing experience, or purchased from Varrock Swords.

Dropped by

Monster Combat level Quantity Rarity
Chaos druid 19 1 3Uncommon
Guard 28 1 3Uncommon