This isn't a Siamese, Thai or Tonkinese nor will be bred, but I think he has special, nice, pale jade green eyes : r/Siamesecats
Willow River Siamese | Old Style Siamese (Thai) cats
NTD Australia - Siamese Thai cat. The Thai or Wichien Maat is a newly renamed but old cat breed, related to but distinct from the Western, modern-style Siamese cat. Photo by Alex
Thai cat - Wikipedia
Gatto Thai: aspetto, carattere, alimentazione e cura
Gatto siamese thai blue point, caratteristiche e carattere - Dogalize
Razza gatto Thai: caratteristiche, carattere e storia - Quattro Zampe
1+ Free Siamese Thai - Round Head & Cat Images
Gatto Thai: caratteristiche e storia del Siamese tradizionale