I hope the OP will forgive me for sort of tagging on here. I’ve recently inherited a DH 16 on the O frame with Damascus barrels. The Research Committee has just sent me my letter
(Thanks very much). But I really don’t know much about Damascus patterns and would appreciate any help in identifying the barrel pattern. A much more “used” gun than the OP gun!!
https://flic.kr/p/2hFjsU2
The barrels:
https://flic.kr/p/2hqrkTi