u/LooseNobody9645

Hi everyone, I have recently rediscovered my old collection (one is fake I think), looks like my mother ensured the little bits stayed safe - what am I doing here? Is it best to rematch all the bits or sell it bulk and untouched? Should I clean them? Can you ruin them if you clean them wrong? Just any advice I would be very grateful for - happy to add more photos if needed - I think I will sell them but I hate selling things so do not have a very active eBay or whatever - in fact where does one sell such a thing? Thank you in advance for any thoughts.