Actually, the new brake master cylinder was on the vehicle. It's been extensively serviced by Precision ProFormance in Orange County, CA, by the prior owner, a physician, who probably liked to keep his hands well groomed. I'm pretty sure it's their product. Saw it in a few ads in PI or POCA issues. Sturdy looking aluminum piece looks like it was machined out of aluminum billet. Bolts right on, no adapter, from a glance at it. I got a stack of receipts from prior owner from that vendor, I don't think they have a website, but if you review PI or POCA, you'll see, then they can mail you a very nice brochure with parts, pictures, but no pricing. (Trained by real estate agents??? POCA and PI issues are best resource.)
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.