By request; before, during and after pics, cleaning with Mr. Clean magic eraser.

Thank you so much for posting this. Your pics and instructions are very helpful
I have just cleaned the end of my Cabas Piano which was in a bad way. It already looks a lot better. I may give it another going over tomorrow before using the leather enhancer when its dry
 
I utterly ruined a monogram speedy's vachetta using magic eraser. I cannot with a good conscience recommend it to anyone.

It ruined the vachetta on the first Galliera Pm I owned. Tried to clean it because of all the black marks (pre inserts in rings) and it ruined it! I was super careful too by not over wetting. Yet it made it look like an old saddle that sat in the Sahara for years.