was comparing visa markings with my neighbor as he claimed he has a multi-entry retirement visa, and he would not need re-entry permit to to come back. Visa stamp he has is normal non-O, same as I have, issued in Thailand (come in with 30 day waiver, apply retirement visa in Pattaya immigration).
He paid a premium fee for agent due to circumstances at the time to get the retirement visa.
But he has this one stamp I don't - what is the meaning of this? Some special multi-entry stamp valid for rest of his life or what??