Hello
I would put my money on these being Hobbs, Brockunier's Polka Dot aka Inverted Thumbprint. The shape is similar to their 226 shakers. Note that 226 refers to the shape not the pattern. One caveat is that the peach blow and coral examples of this shape shown on page 81 of the Bredehoft Hobbs book look like they have two piece lids. If you have this book, you might want to note that they are incorrectly captioned as No. 228 shape instead of 226.
Sid