I say Navajo since I found an identical one listed as a seed pot. But since there’s a pepper shaker I’m thinking it’s a salt cellar with matching shaker.

Considering the brutalist Art Deco design I’m thinking this lovely sterling silver set is from the 1920’s.

It is not marked from what I can see but it is definitely silver and solid silver from what I can tell

They measure approximately 2”x1.5”