diameter is about 13- 14 mm and thickness less than a millimeter. made of bronze I think.
side1

side2

coin2-looks like human figure walking left, also some letters. on the other side someones head with quite large ear and pointy nose.
diameter is about 12- 13 mm, thickness a bit over 1 mm, also made of bronze.
side 1

side 2

coin3-maybe someones head covered with something, other side could be one figure sitting looking left and other figure standing looking right, facing each other.
diameter about 15- 16 mm, thickness about 1 mm, made of bronze.
side1

side2

coin4- seems like a standing figure surrounded with letters, other side someones head facing right, the head is relatively small .
diameter about 12 mm, thickness seems like less than 1/2 mm. made of bronze
side1

side2

sorry about the quality- i have a crappy camera and my skill using it is even worse.
also, if anyone in estonia would like to see these coins in person to help identify them, then let me know
Rain