Here is one that may not be in the "top 20" of Western bitters, but for pure history, rarity, and crudity, this bottle is tough to beat. According to Wilson, Castree and Byrne opened a grocery store at 184 Kearney Street in San Francisco in 1863. Unlike many other bitters manufacturers, these two did not really have a tie in to any liquor distributer, or any large company backing them. It is interesting why they would find it necessary to actually go to the expense of making a bottle, and marketing a bitters. I guess everyone else was, so why not? In any case there are two versions of this extremely rare ladies leg bitters. One has the embossing only on the base, and the other has the prominent shoulder embossing "Byrne & Castree" along with "Salutaris Bitters, S.F." on the base. I believe this is the earlier bottle, though I have no proof. Ring / Ham lists all variants as extremely rare. Also of note is that half of the advertisements for these two grocers have Byrne listed first, and half have Castree listed first...
These bottles come in shades of puce, from cherry, to gasoline, as well as this dark yellow green. I believe they are Western made, and perhaps W.F. could shed some light on this. I have only seen 5 of the shoulder embossed version, and one of the base only version. I believe there are about 7 known in puce, and maybe 2 or 3 in green.
I would also date these bottles from 1863-1867 at the latest. There must have been several batches blown, as each one is a different color! Where are they? I would like to know where they have been found. I know of at least two being dug in the Bay area.