Thai Heritage Conservation

Registered cover with a stamp from the 1995 'Phimai Historical Park' 4v. This Khmer Temple complex was largely built in the late 11th, and early 12th century, and rivals the size of Angkor Archaeological Park. 
Ronald found these 2009 'Thai Heritage Conservation' stamps of stone sanctuaries in a Bangkok market, how cool is he? Thanks Ronald!
Thanks Ronald! Here is the latest installment from the long running (since '88), Thai Heritage Conservation Day collection. The 2 left stamps show Muang Singh Historical Park and the right ones, Sithep Historical Park.