starting collection

HI everybody , and sorry for my bad english ..I'm living in Guadeloupe french west indies , i'm starting a collection about slaves irons , slaves handcuffs , collar ..etc..The story of my island start with the slavery trade,but here , whe have nothing about it!!I suppose that it's very difficultto say that if it's slavery use or not ; i suppose that at this time , slaves or any else prisonners whas in the same irons...
If anybody have some ,i'm ready to buy any vintage and real items.. Open to each propositions ....thanks ...J F