Griffen, I don't collect them and haven't see anyone really mention cleaning silver strikes, but I would imagine I would usae nothing that was abrasive. Maybe some cloth type cleaner that they use for silver. If there is a tarnish on them (which is why I stopped collecting them)on either the "brass" or the "silver" you will have to be careful that you don't cause a reaction. So try it on one your not that fond of. Best I can do for you, but someone on this board who collects them should be able to answer you

Mike