We get hundreds of them here, send me a PM and we will see what can be done to get a couple over to you, postage can't be much for a little stopper or two.
I have a "Holbrook & Co that's the same type and has a Holbrook marked glass top. I never found out which came first but one of them wasn't very original.
Holbrook & Co hot sauce bottles breed like fly's I think [] , they and there stoppers are found every where I've ever dug in Oz in large quantitys (that's roughly a 2000 by 1000 Kilometer area).