Formerly known as German East Africa, Tanzania started minting coins in 1966. Tanzanian coins come in two denominations: senti and shilingi, with 100 senti in one shilingi.
All of Tanzania's circulating coins, in all denominations, are made of non-precious metal and are worth very little, less than $1 US dollar in circulated condition, and a few US dollars in uncirculated.
Like most nations of the world today, Tanzania produces modern commemorative coins which they sell to collectors. These are made of gold and silver, and are worth their weight in precious metal.