Green my brass

The ones with the darker background don't even look like they match the shiny ones at arm's length

Anyone got a concoction to make them darker quickly without being the bright green?

 

Liver of sulphur is what they use to age silver. I don't recommend it. I think they look good the way they are. My guess is the lighter ones were on the inside of a door and the darker ones were more exposed to the elements.

 

I think I'll sell as is

 

This looks interesting. I did find the liver of sulphyr, but the brass has to be cleaned of any oils,vaarnish,etc.

How To Antique Brass

Ammonia Fumes
Suspend your brass items over ammonia that is in a covered jar, making sure that the brass components do not come into contact with the ammonia. You can use fishing line or nylon stocking to suspend the metal. Secure it to the bottle with rubber band or sticky tape on the outside. Then lid the jar.

This can take a few hours. Check on progress and determine when you are satisfied with the color changes.

After this process, leave the antiqued brass items out in the open for a while to get rid of any lingering ammonia smell.

http://www.jemlibrary.com/jewelry-making/how-techniques/00172-how-antique-brass