silver mirroring effect

[amanitajack]

Wondering if it is possible to intentionally create the silver mirroring effect you see on old, badly stored silver gelatin prints. Any thoughts would be appreciated. Thanks. example:
Forms of Photograph Degradation: Silver Mirroring

 

[compur]

There is such a thing as mirror effect spray paint but I don't know if it would work for your purpose.

 

[webestang64]

I've spent my career taking that out of prints for my customers, not sure how to make a new photo look that way.