A traditional style gansey with split welt then joined to work in the round using Blacker Yarns Romney Guernsey, 5-ply yarn.
(100% Romney, 232 Meters / 242 yards per 100g skein).

Actual measurement:
Chest; 87 (96, 108.5, 117.5) {127, 136, 145.5, 154.5} / 34.25 (37.75, 42.75, 46.25) {50, 53.5, 57.25, 60.75}

Length; 53 (54.5, 55.5, 57) {57.5, 58, 58.5, 58.5} cm / 21 (21.5, 22, 22.5) {22.75, 23, 23, 23} in

Sleeve; 45.5 (46, 46.5, 48) {48, 48.5, 49.5,
50.5} cm / 18 (18, 18, 18.5) {18.5, 18.5,
19.25, 19.5} in

Sample is shown in Light Grey shade, Romney Guernsey yarn
Quantity needed:
6 (7, 7, 8) {8, 9, 9, 10} skeins
600 (650, 700, 750) {800, 850, 900, 950} g