Help with silver marks, possible Chinese export pieces

[kali_is_my_copilot]

Bought these as plated for $12, stamped "SILVER" and LB. So far anything I've acquired that was marked just "silver" has been at least coin or sterling but I don't want to damage these by filing into them for acid testing so they're unproven as of yet, I'm going to attempt to check the specific gravity later. They have no other marks and they don't come apart at all. They weigh just over 350 grams each. I've been looking for similar hallmarks on pieces of similar design pretty exhaustively and haven't found anything yet so I thought I'd give you guys a shot.

 

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[JimDon]

They definitely look like cast pieces which would be very unusual for silver. That being said nothing surprises me. Probably going to need to acid test then

 

[kali_is_my_copilot]

Ah well, ended up filing inconspicuously and testing and it was no but no. I should get at least what I spent on them consigning so no big deal.