The paper currencies issued by both clans in the western Mino area was so-called Sumidai-satsu (literally, paper money for charcoal price) issued by Sumikaisho (literally, a charcoal association) to make the money circulated by using it in trading charcoal that was a daily necessity.
西美濃地方の両氏が発行した紙幣はいずれも、生活必需品であった木炭を売買する際に用いることによって流通を図るべく炭会所が発行した炭代札と呼ばれるものである。