According to P.119 "Haiyaku soran" 1999, Kiichi Komiya,『配役総覧』平成1年、小宮麒一, the actors mentioned in the invitation card played in Kanadehon Chūshingura 仮名手本忠臣蔵 in Nov 1947.
Mention of this can be found in Kaizawa Interview 29 June 2000: JB: This is an invitation from the Shochiku Kabushiki Kaisha, Kanadehon Chūshingura and the date is the eleventh month, 29th day. 29th day? Was this a special performance? Why is the 29th day? It surely started from the beginning of the month. SK: Hmm. This was an issued date. JB: Was this a senshuraku 千秋楽? ….Where was the year. Strange. Might be on the other side? What? We need to look it up of this then. It’s a Nibusei (2部制), Right? 11 o’clock performance, before 4:30 performance. SK: Hiruno-bu and yoruno-bu. JB: There are only 4 acts. And a whole day. Usually they do the whole plays. Unless they are repeating it. That’s, There is no date, isn’t it interesting? Looks like a big cast…