Sarawak Rubber Export Coupon, a group dated 30 June 1941, including 5, 10 and 25 Katis, (Tan SKR1d, 2e, 3c, KNB55, 56, 57), in PMG holders, minor rust 63, rust 63 NET, minor rust 62. This type in brown scarcer then the commonly seen purple varieties (3 notes)