Actually 'patina' is probably the wrong term to describe the 'before' bag--it wasn't that it was darker before, it was somehow glossier. Instead of that soft, glove leather feel like my 90's bags it was firmer and glossier. This is the oldest of my bags, from around 1982 according to our experts on the Authenticate thread, so I didn't know if the leather was originally different on that particular bag, or if it was just from age.
With one or two more CPR treatments and a finish of Blackrock's I am hoping the luster it had before will be restored.
The first pic below is right after purchase; the second one is post-bath. Can you tell any difference? Perhaps I am just overthinking this one!
Thanks as always for your advice!