Iodine Pencil, Boots Pure Drug Co

I scored this neat little iodine pencil on etsy not long ago. The design is fabulous, the glass iodine tincture container screws into another protective container, which I believe is a thicker glass although I am not sure. A little searching indicates that this item may be pre-1939 although I cannot be sure as I have no images with which to compare:

science museum group

Boots Iodine Pencil, protective container

Boots Iodine Pencil

Boots Iodine Pencil

Boots Iodine Pencil

Iodine Facial circa 1920...

Sincere apologies for the lack of source on this. I have about 1200 old books and magazines on google books and I took screenshots of these pages without saving the source. I'll edit this post when, and if, I come across the source. To the best of my recollection this was published in the 20s, in a black culture magazine... My apologies too, to the eternally lovely and not likely to ever tan Marie Antoinette... I could not resist giving her an iodine tan... scroll down:)

Mariodine Antoinette:)