Dahb Thai, Japanese swords and hybrids

[PUFF]

Regarding to the southern Dahbs, they shared a similar fate as Dahbs from southern area of Lanna. Since Ayuthaya era, the region was under Siamese power for some period, they were self-rule for some period and they were fully governed by Siamese governer for some period. So, their craftsmanship was mixed up with Siamese's. Althoug the example at top of the rack do has Siamese profile with Lanna style hilt. But its detail 's a lot different from typical Lanna Dhabs. The hilt 's cast of brass with persian-style detail. And we do have another identical Dahb with a good reference that it was belong to a southern noble family.
Mark, you are very good in Dha ID. Even from a poor taken pic, you can ID it right. The third one also very Lanna'ish to me. The hilt was carved of wood in oval profile (instead of round profile as typical ones), very similar pattern to the silver one from Nan province (in Lanna area). Blade profile, decorative and scabbard remind me a Lanna blade. But the onwer do has good reference that the blade 's obtained from southern part of Thailand. And it was there for some good time. It 's possible that the blade was made to order, or brought to the area by "northern" folk.