The first coin from the top down, is Mexico - 1983 - km # 460, date doubt is narrow or wide date?
The second coin is Ecuador - 1991 - KM # 93.1 (tight year date, 161 denticles) or KM # 93.2 (wide year date, 141 denticles)?
The third coin is to be Thailand, but this does not have the slightest idea of how to identify?
Thank usual help!
Olivetti