Hello everyone! I have 2 iron mokko tsuba with brass fukurin that I purchased from 2 different sellers from Japan. No further information provided by the sellers except for the usual "Edo period". The larger one measures 7.4 cm in diameter and nakago-ana is 2.9 cm, while the smaller one measures 6.8 cm in diameter and nakago-ana is 2.7 cm. Could these be a daisho tsuba? Or are they both for a wakizashi?   Any information regarding school and estimate period are greatly appreciated!   Thank