I presume this is a bottle with the embossing "FEDERAL LAW..."
We know the "D" stands for distillery but otherwise we know nothing about the glass manufacturer so you are at a dead end. Every company had it proprietary markings - there is little or documentation for many companies.
Comments
here is what it looks like
16
D126
73 43
The markings
16 in upper left corner
D126 in circle in center
73 in lower left corner
43 in lower right corner
We know the "D" stands for distillery but otherwise we know nothing about the glass manufacturer so you are at a dead end. Every company had it proprietary markings - there is little or documentation for many companies.