I don't know if you guys (variety nuts) know about the existance of watermark variety for the 70s Orang Asli stamp. The Orang Asli stamp set was released on September 27, 2010. The normal watermark for these stamps is SPM upright. However, SPM inverted is also recorded for the 70s stamp. Some post offices are still selling these Orang Asli stamps, and if you have not got it yet, you may need to try your luck hunting for this SPM inverted 70s. Well, if you are lazy to hunt for this variety at post offices, you should know where you could get it at a premium..... hehehehehe