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The JIS headset also came in.
Partly I got this one because there are several references online that the bearing race in this "alloy" headset is "welded" to the other bit. Hmmmm
To me it looks like the race is lightly pressed in, then some of the material on the aluminum cup is upset, so the race can't ever back out. It otherwise looks & feels good.
Has the tiniest tiny NJS stamp, like 1.5mm diameter.