Wholesaler brand made by famous Mitsukawa Jyuntarou (probably by 2nd generation since it is very old) from Miki. The hollow is machine made, so it is not as expensive as the one done by sen (from $300). It is fully sharpened ready to be used right away. Can supply with cane wrapped kiri handles +$15.

If you know Mitsukawa Jyuntarou's stamp, you should know it's by the same blacksmith. The stamp is black unlike the usual Mitsukawa saw, because it was stamped before the hardening process.