Cleaning up old solder

[HarvestMoon]

Hi, I've 'inherited' a bracelet made from old threepence coins. Looking on the internet, I think a couple of the older ones are silver, the rest are a silver alloy. Each coin has had two tiny rings soldered to each side, allowing them to be joined together to form the bracelet.

My issue is that the soldering has been done incredibly messily - I think it may have been someone in a shed with a soldering iron rather than a jeweller. The solder has spread quite badly across some of the coins, obscuring the design. Is there anything at all I can do to clean up the coins? I'm guessing not, but I thought I'd ask here before giving up on it altogether.

I'd like to remove the links and use the separate coins to make new keepsakes for myself, my mum, sister and nieces - would heating them to melt the solder work for this?

Any and all advice gratefully received! I've hopefully attached a picture to give you an idea.

Thanks
Caroline