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>> No.30152908 [View]
File: 279 KB, 1025x1025, 10697298-2A49-46E7-B7C2-1B4CFDFC9BBD.jpg [View same] [iqdb] [saucenao] [google]
30152908

>>30152455
You can artificially tone coins with chemicals, but collectors and coin shops would be able to tell if you do it improperly.

https://www.gainesvillecoins.com/tips/48/signs-of-artificial-toning-on-coins

>> No.27215096 [View]
File: 279 KB, 1025x1025, 57130d367c74a.jpg [View same] [iqdb] [saucenao] [google]
27215096

>>27211118
Doesn't corrode away like iron but it gets a patina that some people dislike.
If you want it to stay perfectly shiny you have to put it in plastic.
Platinum and palladium don't behave like gold and the plastic is unnecessary.

>> No.25163341 [View]
File: 279 KB, 1025x1025, 1589714201160.jpg [View same] [iqdb] [saucenao] [google]
25163341

>>25163040

>> No.19387106 [View]
File: 279 KB, 1025x1025, silver pretty.jpg [View same] [iqdb] [saucenao] [google]
19387106

>>19387069
Post stack?

>> No.19148886 [View]
File: 279 KB, 1025x1025, silver pretty.jpg [View same] [iqdb] [saucenao] [google]
19148886

>>19148322
This is an example of a pretty one

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