Very cool. I agree that these are truly Chinese-inspired Burmese and not on on fusion from Som China. Aside from their being double, the fittings are classic Burmese in form and decoration. What I have seen from Yunnan has recognizable Chinese motifs. Of course it could be that I only attribute to Yunnan pieces with Chinese motifs.
(Just kidding, I have seen pieces known to come from Yunnan).