a found 1833 coin king ferdinanVll is this coin i valuable..im [gelöst]

I know very little about Spanish coins, but I'll dive in anyway. It's probably not worth much because: For a coin 1833 is not particularly old.  It is not rare, based on the Numista index. It wasn't a valuable coin when it was new. And the condition is not great. There's a bunch on ebay for USD $15-30, but those are asking price, not what people will pay. So less than that

Hard to tell the denomination of your coin, weight or diameter is needed. There are past auction sales of each coin page. Those plus the condition of your coin should put the value at US $5-$10.

Search the coin catalog – Numista

Quite badly worn it is either a four or eight maravedis depending on the diameter as for value, I would say next to nothing the kind of thing you find in 10 pence trays