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 Post subject: Wood identification help - two kinds of kaya?
Post #1 Posted: Tue Jan 14, 2020 1:41 pm 
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A tale of two goban.

Here's the run-down:

Both boards have a very pleasant scent, which I'm pretty sure means they're made from Kaya.

Board 1 is darker, comprised of 7 pieces, and has a less pronounced scent.

Board 2 is lighter colored (sort of more yellow than the first), is made from 4 pieces of wood, and has a very bright smell. The lines on this board are thinner, too, if that means anything.

What I'm wondering is whether it's possible to tell where the board was made, or where the wood originated, based on these details (and the photos, included below).

Board 1:
Attachment:
File comment: Board 1 - closeup
Board1-close.jpeg
Board1-close.jpeg [ 235.04 KiB | Viewed 135 times ]

Attachment:
File comment: Board 1 - sideview
Board1-side.jpeg
Board1-side.jpeg [ 97.09 KiB | Viewed 135 times ]


Board 2:
Attachment:
File comment: Board 2 - closeup
Board2-close.jpeg
Board2-close.jpeg [ 148.82 KiB | Viewed 135 times ]


Last edited by fireproof on Tue Jan 14, 2020 1:46 pm, edited 2 times in total.
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 Post subject: Re: Wood identification help - two kinds of kaya?
Post #2 Posted: Tue Jan 14, 2020 1:42 pm 
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Whoops, follow up with Board 2 sideview

Attachment:
File comment: Board 2 - sideview
Board2-side.jpeg
Board2-side.jpeg [ 67.08 KiB | Viewed 134 times ]

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 Post subject: Re: Wood identification help - two kinds of kaya?
Post #3 Posted: Tue Jan 14, 2020 4:30 pm 
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After looking carefully at the many dozens of closeups of Hon kaya, Hyuga Kaya, Agathis, Hiba, and Shin Kaya boards at Kuroki's site, seems to me you've got two lovely kaya boards. But they look like they were made from trees harvested from two different eras or that were located in two widely distant locations. The lighter wood exhibits tight and fine grain that only occurs in very slowly growing trees in a narrow temperature range that doesn't vary much from season to season or from year to year. Perhaps a coastal location. The darker board displays wide, variable, and deeply contrasting grain suggesting a location with much harsher and dramatically variable weather, Maybe high on an exposed mountainside.I cannot imagine how one would estimate the locations of harvest, conversion, seasoning, or manufacture. Do you have approximate ages? The tighter grain suggests to me a tree that was harvested at least 100 years ago. If Japan's history of over harvesting Kaya is anything like America's insanely shortsighted destruction of oak and maple reserves, such fine grain patterns have not been seen in many decades.

But, hey, I'm just sitting at my Mac on a snowy day in Boise, Idaho, and I enjoy reading ANYTHING here on the forums that is not related in any way to go on computers.

There are some knowledgable folks here, I hope one of them will be able to give you a definitive answer. Thanks for posting the photos.

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I play go, I ride a recumbent, of course I use Macintosh.

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 Post subject: Re: Wood identification help - two kinds of kaya?
Post #4 Posted: Tue Jan 14, 2020 8:59 pm 
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Very interesting -- thanks for your thoughts! I hadn't considered the color/scent difference being geographical, really (though "country of origin" was on my mind). I thought the variation would be a different sub-species or something along those lines.

Perhaps you're right about the relative age of the wood, too, though unfortunately I have no idea how old the boards are. Perhaps the wood for one of the boards was harvested longer ago, as you suggest.

The most surprising aspect of these boards is how nice that smell is; it gives me a boost each time I take the cover off!

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