Robertson
This is the Robertson sett — one scale-free proportion (r1g17r2db2r17g2r2g2r17db2r2g17r2db17r2g2r17g2r2g2r17g2r2g17r2g17r2db2r17g2r1), colour order pattern
RGRBRGRGRBRGRBRGRGRGRGRGRGRBRGR. It is recorded as a single variant, below.
First attested 1831.
| Scale | Variant | Earliest | |
|---|---|---|---|
| ×4 | Robertson ★ | 1831 |  |