Well you must give more information. Nearly all pre-revolutionary coins have a lion with a sword. It is like asking what coin had Queen Elizabeth on it.
That depends on which rial (Iranian, Yemeni, or Omani) and in which other currency you want to know its value. For example, "What is the value of 1 Iranian rial in US dollars?"
it was the value
84-85 Rs
84-85 Rs
$8.75
$350
4000
sword
The Iranian Rial is currently the lowest-valued currency in the world.
Impossible to answer without provenance, condition, etc..
234.44
$4,789.00