These photos are better, but not good enough for me to make out the third Chinese character.
Here is what I see:
原 (？) 天 寳
In the circle is probably the chop of the silver master: 徳
What follows is by no means an exhaustive list, just some likely candidates to the (?) character I cannot make out. Perhaps the OP can tell me if any of the characters below are exact matches:
Or perhaps someone who has seen this mark before will recognize it.