44's, 50's didn't come in this style of carb body. Refer to the photos Lurch posted for what 50's look like (they look like Type 2's). These are Type 5 Mikuni's with the cooling bodies on them.
Strictly speaking I think water jet blasting does make them a little more glossy than OEM (flat) look but I am fine with that. After seeing it done on my cylinder head and valve cover I was hooked. I also had the gearbox in the 72 240z done via water blasting.
It was a bit cheeky, and I'm sort of flooding the house with car parts at the moment. However it helps if you invest in some insurance when coming back from an overseas adventure. These wine bottles help I'm sure.
I also brought home some D caps... they are not perfect (1 has some minor chrome flaking) but very good used shape...
Every time I go to California I expect to see more S30Z's but despite how many you see on eBay or Facebook they are actually very rare to spot, even in a dry state of California. This time I did spot at least 1 S30Z though.. a 280z.