hi ,I have 4 berg socket chisels with the shark motif engraved  on them. these chisels seem to be blued as in rifle bluing. they range in size from 1/4″ to 1 inch. There is only 1 handle that fits the three smaller ones.  the stamp on them is E A berg  Eskilstuna with the shark underneath. Above that Sweden is engraved in a semicircle.
Would they be worth anything to anyone. I can’t seem to find out how old they are. Any help would be appreciated.