Sarawak perfin

Just sold a Sarawak perfin stamp on ebay won by higgijon for a few bucks. Knowing nothing about the stamp, hope someone will enlighten me. It's good to show that good stuff can be found from my auction (sometimes), I don't filter my pee.

Just won a 'jab-see-gai' lot from Argintina & gantianexpress already email me "!@#$%^ so f**king lucky". I hope to see his own 'jab-see-gai' Borneo cover tonight, he said already arrived.

serilabuk is quite active at ebay recently, hope he's doing well.