Jacob T. Child, The Pearl of Asia — Chapter 35 The Money Standard of Siam (1892)
“ Occasionally one of the gold pieces can be purchased, but they are rare and bring large prices by coin collectors, being regarded as curiosities. There are a large number of counterfeits in circulation among the bullet-shaped coin, owing to the fact that a number of years ago the master of the mint, unknown to the King, manufactured an immense number of copper ticals, and being an adept in metallurgy plated them with silver, and put them in circulation. ”
