These are reproduction 550 brake line distribution blocks. I have some extras (there always a minimum run). They are almost a perfect reproduction (just doesn't have the ATE logo). I use them for "custom" dual master cylinder installations. They are not cheap, but the next run will cost a lot more. They really make the installation look a "cut above" instead of looking like the plumbing under your kitchen sink.
$70 a piece.
If interested, just send me an email at ed@klasse356.com