Which Undulat breeds come in Spettet?

Club breed standards describe Spettet for the Undulat.

Undulat pattern

Spettet

Colored feathers with white tips scattered irregularly, as in Anconas; mottled skin or legs show patches of pigment.

2 Undulat breeds list Spettet. It is in a club standard for 1 breed.

Breed	WBO	BS UK
UndulatBein og føtter	Standard (“blue/grey mottled”)	Standard (“Feet and legs: blue/grey mottled, fleshy pink or a mixture of both.”)

Breed
Undulat