Rare Mabie Todd Blackbird Demonstrator w/ Diamine Grape!

I'm looking to expand my Swan/Mabie Todd collection, since the last Swan I purchased doesn't have a model number to go by. Since I love the capabilities of that nib, I figured I needed to expand and step up my game to something you rarely see.. a Mabie Todd Blackbird Demonstrator.

With un-interupted broadcasting, lets wait no longer, and lets give around-of-a-applause to Mr and Ms. Blackbird!