Ah okay, from that bottle I'd guess you're looking at 1890s to 1900s era which is a good era to be finding things from!
Not sure I'd wanna try 100-year-old yeast!
I'm afraid that I cannot reply to your PM because "hemihampton has exceeded their stored private messages quota and cannot accept further messages until...
Opps you are correct. The photo is the other bottle.
This bottle is now on hold.
I think you posted the wrong photo on this one, that doesn't look like an Ayer's Sarsaparilla to me. The three bottles could likely be the same age, as American glassmaking was a few decades ahead...
Hi and welcome to the forum! The Lea and Perrins probably dates to the late 19th or early 20th century, up to around the 1920s or so. It's hard to be precise with these UK bottles.
No way to know the original brand of the contents I'm afraid, the marking on the bottom refers to the glass company. I imagine it's possible to figure out which glass company it's from but I don't...