Variety? White yellow and black

[KoiOnline]

Hi there



I have a few white, yellow(metallic) and black koi from one of my wild spawnings.
The white is getting bigger from the bottom upwards and the belly is pure white.
It is not good quality fish due to the smudgy black, although it is a quite striking combination of colours with the metallic yellow and pure white.
What variety is this being white, yellow and black? (If any)

[JasPR]

it's a reversion back to the wild type. Basic black, yellow and white/silver chromatophores. JR