Top Row

Stamp 1 1d lilac perf 12 x12

Stamp 2 2d Prussian blue perf 12 x 12

Stamp 3 4d  brown perf 12 x 12

Stamp 4 6d yellow/orange perf 12 x 12

Stamp 5 1/- maroon perf 11.5 x 12

Bottom row

Stamp 1 1d lilac perf 11.5 x12

Stamp 2 2d Prussian blue perf 11.5 x 12

Stamp 3 has central thin 0.5d grey perf 10 x 10

Stamp 4 2.5d ultramarine perf 11 x12

Perforations were assessed using a Lighthouse perforation gauge;