Hi Ian,
I have followed your thread since you started it but wasn't able to comment, I got out my gallbladder which has caused me great problems lately and since I have had only my smartphone with me in hospital from which I don't want to comment.
But I am very surprised that nobody has commented until now. Your both examples are very nice and seem to have a great age. I would like to see some close-ups, especially from the handles and the spine.
May I ask why you think that they are of Cambodian origin? So far I know Thai and Laotian chopper are very similar with partly different blade shapes. shrug:
Here is my example, I guess Thai origin, which I have shown here before:
http://www.vikingsword.com/vb/showth...t=thai+chopper
It is 45,7 cm long.
Regards,
Detlef