Given the context of the collection this disk was found in, I would guess that the Japanese disk dates to the late 1930s.
Nipponophone/Columbia
JS 37 (2LA 2536/2LA 2537)
Die Fledermaus—Overture, J. Strauss, Op. 56,
Bruno Walter and Ochestre de la Societe des Concerts du Conservatoire
Side 1:
Matrix No.
Details in upper run-out area
Side 2Kelly File: 0LA
Location: Paris, France
Recording date: 1938-05-09
Other: Victor 13688 13692
Title(s): Die Fledermaus: Overture (Strauss), 1
Issued: DB3536
Size: 12-inch
Session Performer(s): ORCHESTRE DE LA SOCIÉTÉ DES CONCERTS DU CONSERVATOIRE, (BRUNO WALTER)
Recording Notes:
Session Id: 75369Session Group Id: 3192Location Id: 22
Matrix No.
Distinctive detail from upper run-out area
Kelly File: 0LA
Location: Paris, France
Recording date: 1938-05-09
Other:
Title(s): Die Fledermaus: Overture (Strauss), part 2
Issued:
Size: 12-inch
Session Performer(s): ORCHESTRE DE LA SOCIÉTÉ DES CONCERTS DU CONSERVATOIRE, (BRUNO WALTER)
Recording Notes:
Session Id: 75369Session Group Id: 3192Location Id: 22