How old is that piece? It's very beautiful!

Beautiful... I love how you can see the viscosity of the glaze in the 'drip' at the bottom.

A very nice bowl indeed. Hurray for Fujian potters.

Absolutely gorgeous! I love when the depth of the bowl's color contrasts with the matcha. My favorite bowl is primarily a deep gray.

Nice Hare's fur tenmoku.

It's a tricky glaze to do, even with electric kiln's, and although I've tried, I've so far failed :(
What happens, is the red iron oxide decomposes in the heat and the oxygen bubbles through the surface and pop's.
The bubble causes the contrasting color at the surface, and then must flow down the sides without dripping off.
The streatched bubbles are what cause the streaking, and the flow re-seals the pinholes.
Potters also kinda like those drips, as it adds movement to an otherwise symmetric piece.
It's really kinda hard to control well, so your bowl is really quite nice overall.

I like how the bowl looks really deep when you look at it from the top. No other kind of bowl does that.

How old? I don't know. Seller claims it's from Song, but they all do.