Just received following reaction from Swedish FA
Sweden “B”–Poland 7–1 (4–0)
May 20 1924, Olympic Stadium in Stockholm
Robert Zander – Konrad Hirsch (Edvin Holm 46), Sten Mellgren – Sven Lindqvist, Gustaf Carlson, Karl Gustafsson – Charles Brommesson, Thorsten Svensson, Per Kaufeldt, Tore Keller, Rudolf ”Putte” Kock.
Goals (min's not known):
4–1 Mieczyslaw Bacz
6–1 Kaufeldt, penalty
Ref: Thure Håkansson (Stockholm).
Note: Holm broke his leg in the 90th minute.
Zander, Hirsch, Svensson and Kock also played in the match two days before. Other players already have played A-internationals before except Keller who made his debut nine days after this match. Most of these players were regular A-national team players. I would count this match as A-international too.