Silver transverse penciled

Color and pattern male

Head: silvery-white.

Neck-hackle: glossy, vibrant silvery-white.

Shoulders, back, and saddle: glossy silvery-white.

Tail: steering-feathers black; sickles and coverts glossy-greenish black with a narrow, sharply defined silvery-white lacing.

Wings: vibrant silvery-white coverts; the wing-bar feathers have a faint transverse penciled inner vane.

Primary-flights: outer-vane silvery-white without any pattern, inner-vane black.

Secondary-flights: outer-vane silvery-white, inner-vane silvery-white with some black pattern.

Breast, front of neck, belly, and thighs: warm silvery white; the body-feathers show some black penciling.

Rear-part: blackish grey with brown tinge.

Down: light-grey.

Serious faults

Yellow tint in neck- and saddle-hackle. Rust on shoulders. Black spots on breast, belly, thighs, and wing-coverts. Excessively broad or irregular lacing of sickles or tait- coverts. Absence of sickle penciling.

Faults

The above serious faults are present to a lesser extent.

Color and pattern female

Head: silvery-white.

Neck-hackle: silvery-white.

Shoulders and back: silvery-white, each feather with greenish-black penciing.

Tail- feathers: silvery- white with a strong transverse penciling, most prominent in the top two.

Upper breast and front of neck: silvery-white without any transverse penciling.

Wings: coverts and wing-bar bright silvery-white with transverse penciling.

Primary-flights: outer-vane silvery-white with some black penciling at the tip; inner-vane black with some white lacing along the outer edge of the vane.

Secondary-flights: silvery-white with transverse penciling that turns into more or less longitudinal stripes on the inner-vane.

Lower breast, belly, and thighs: silvery-white with some transverse penciling that become stronger towards the bottom.

Down: light-grey.

Serious faults

Yellow tint in the ground-color. Coarse or very irregular transverse penciling. Insufficient depth and sharpness of the transverse penciling.  Transverse penciling too high on the breast. Transverse penciling in the neck-hackle.

Faults

The above serious faults present to a lesser extent. Silvery-ground color in the transverse penciling.

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website with all available information regarding chicken genetics including the chicken color calculator.