Hard-to-find 1951 KGVI high perf $5 block of 4 and block of 6.  Singles are common but such blocks are much more difficult thus usually commanding anything between 10-20% premium.  Total catalogue value for 10 singles pieces is about S$150.  Selling at a healthy discount.

Local postage and handling S$1, add S$2.3 for registration.  Will also ship to worldwide destinations, overseas buyers postage US$3, add US$1.50 for registration, payment by Paypal.