Dear All I need your help to identify a hot stamp present on the iron body of a Heianjo tsuba of mine.   The surface of the iron shows hammer marks as on Tempo tsuba and in a couple of places shows sign of the hot stamps that are often shown by tsuba of this school.  Only in one place the stamp is clear enough to show part of a kanji.   It does not look like one of those usually reported as being on Tempo tsuba (https://www.militaria.co.za/nmb/topic/7