they were only worth a Dollar probably when this was done and they never thought they would ever be worth more than that. I have seen Gold coins (all the way up to $20.00 Double Eagles) made into bracelets like this so it is what it is and it didn't really devalue the coins back then and actually probably made them worth more than they were worth as coins back then. These do not look to have holes drilled into them like most I have seen so the holders could be taken off of these coins and may not even be able to tell, but chances are it would leave solder on the coins or at least some of them