The oil and vinager set is in one part. The marks "12" is under the first receptacle and the "E"+"Eagle"+"T" on the second one, not together under each part. Would you think about a german or austrian work if they were both together under each part?
I think so... 12 for 12G of silver... But what is surprising is I see this mark several times without knowing its origin, and about its silversmith whereas the hallmark is really identificable... Anyway, another unknown hallmark! I'm strong in finding unknown stuff ;-))) Thanks for your time Traintime.