It is difficult to ID those stamps with only local language, and even no any
language just numbers. Is there any way to guide stamps colletctors to ID those stamps quickly? Peter
"Is there any way to guide stamps colletctors to ID those stamps quickly? "
There is an Illustrated Identifier in the back of the Scott catalogs that may be of some assistance -- it contains an image of a stamp similar to those you posted in the Thailand section.
Two other resources that may be of assistance (but that aren't necessarily "quick") are:
Peter