Pattern BGBGGBGGBGGBGGBGGBGRGWGRGRWRGR

BGBGGBGGBGGBGGBGGBGRGWGRGRWRGR

It is a 30 stripes tartan.

Colour Sequence

BGBGGBGGBGGBGGBGGBGRGWGRGRWRGR

List of tartans with this colour sequence

Tartans
Unidentified Victorian fancy