ok as we are splitting hairs, can someone please tell me the paring to obtain matsukawabake

maurice cox of koi uk asked me if i knew because he found several in a pond, he will not call them matsukawabake untill he knows the parent koi, ie. he will not call them matsukawabake untill he knows he has the parent stock to produce them... i called them scaled kumonryu because basicly thats what they are, matsukawabake came first, then the doitsu versions came later kumonryu, this is my understanding atleast, anyway all i need to know is the pairing used to obtain them, thank you