「Ran」Hira-ganna Japanese Smoothing Plane by Sakata Haruo - 70mm
Brand name: Ran Gogyonoseika (蘭 五行之精華)
Smith name: Sakata Haruo/坂田春雄(1912～ ？). Another famous plane blacksmith in the Miki area named Sakata Kenji/坂田憲治(? ～December 29, 2007) was his son.
Steel: Special steel
Jigane(Iron part of the blade): Wrought iron(Kamaji)
Blade Width: 70mm
Blade length: 116mm
Blade thickness: The blade near the bevel(about 6.30mm)，Top of Blade（about 9.55mm）
Blade Weight: 383g
Blade Angles: 23°
Chip Breaker Width: 63mm
Dai manufacture: Unknown
Dai size(length, width, thickness): 290mm 88mm 36mm
Total weight: 1250g
Manufacture Era: Before 1970
Accessories: -
Additional Information: Unused, in brand new condition. It comes from the collection of a retired carpenter in the Kansai region of Japan.
The wooden bodies of these three planes, collected from carpenters in the Kansai region, are all made from high-quality Japanese red oak from the Kyushu area. However, the red oak used for this plane has a slightly lower density and a lighter color compared to the other two. Based on the knowledge I learned from experienced craftsmen who specialize in making Ming-style furniture, the red oak used for this plane likely grew on the sunny side of the mountain, where rainfall and sunlight are more abundant and plants grow faster.
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