The only reference I can find is from Miller [M] who shows the labels as havuing been manufactured in Germany by Homophon gmbh, and sold in Australia between 1912 and 1914, probably by British Record Pty Ltd.
See also Rexophone, also made by Homophon gmbh.
Records in collection:
L037 sc3 RONDOPHONE
RECORD Recorded in England, Pressed in Prussia.
L068 sc3 RONDOPHONE
RECORD Pressed in Berlin.