Looks nice,Charcol Bluing is always nice:
Charcoal Bluing - Turnbull Restoration
Capturing the proper shade and texture of original charcoal bluing (sometimes referred to as carbona bluing) finish depends largely on the underlying metal polish. The end result is a blue-black glossy finish that is hard-wearing. A charcoal blued high polished part will produce a mirror-like...www.turnbullrestoration.com
You can search greg derrs posts for some nice looking finishes.