2 DRAWINGS OF A HORSE 15 IN x 11 IN (APPROX) on the inside of the backing of the drawing is a lot of either Japanese or Chinese writing (picture of part included)
Thank you for submitting your items for appraisal. These appear to be two japanese woodblock prints by Sonan Noda, a mid century modern woodblock artist who was active in the 1950s, The woodblock prints are signed with the artist seal and “Sonan” (そなん). Little information about the artist is available, his prints were apparently published by Kyoto Hanga-In- Co. Ltd.
The estimate is for the two prints together. The estimate is based on average current auction results. "Asking prices" in the trade can be higher.