Thank you for submitting your items for appraisal. These appear to be four japanese Ukiyo-e woodblock prints from the 19th century. One was executed by Ichiyōsai Toyokunihitsu 一陽齋豊國 (筆), the paired censor seal Mera-Murata (米良-村田) dates the print to 1847-1852. The three other prints date to ca. 1872 and were executed by 国政 Kunimasa III (1848-1920). These are prints by identifiable but lesser known Ukiyo-e artist. The estimate is based on similar sets offered or sold at auction.