These are neat coins from Lithuania. The earlier date, 1991, is not made of two metals, but is solid copper-nickel. The '2' and '5' inscriptions tell the denomination, and the cool mounted knight tells the coin is from Lithuania.
Values of these modern coins are low. Catalog values for all dates 1991 and higher are:
worn: less than $1 US dollar appproximate catalog value
average circulated: less than $1
well preserved: $1
fully uncirculated: $3