Pewter bottle - what kind and what are the marks? - help pls

Hi all
New around here, looks like its a very helpful place.
Can anyone tell me what kind of bottle this is and does anyone know anything about the marks on the bottom.
Thanks in advance.
Brian

 

Is there a hole in the cap?
Looks like a baby feeder with the nipple broken off.

 

Like this.

 

British. Serious age, too. Try oldcopper.org for the mark. Might be a powder flask.

Oh, and read this: http://www.pewterbank.com/Marks-_Crowned_Rose_-_Jan_Gadd_....9.pdf

 

I don't know but I'm not certain about it being British. I did look through Cotterell's without seeing it. I did find a rather similar mark of H&B or H*B in Tardy's as French, (though not the same as yours which seems to be H*S, HKS or something like that). The mark is at the bottom of this page. I have a half dozen or so books on pewter and didn't see this exact one though honestly I could have missed it.

 

Definitely not a powder flask, I’m sure it’s a feeder.
Could be this type as opposed to being broken.

 

Thanks for all your help so far everyone.
Looking more like a nursing bottle.
Couple more pics here.
Guessing not that old due to threaded top?
Couldn't see any more marks on bottom on close inspection.

 

I believe it’s mid to late 18th century, screw threads were being cut well before.

 

Thanks, all new to me so really appreciate your help

 

Closeup of the area you highlighted

 

I've had a very good look over it today and cannot see anything that looks like it might have been a mark, thanks for help

 

JMHO. the thread looks too good to be handmade. but if you have a gauge you could eventually define if it's metric, whitworth etc..
the rose was used everywhere and doesn't help.

 

Seems like a good shout.
Haven't got a gauge to meausre.
What would be the earliest that thread could be non-handmade?

 

normally the man would be Henry Maudslay around 1800. before that, the bolt and nut were always a pair and not interchangable with others. and my guess for the thread in the cap would be even later.
with no gauge but calipers you could eventually measure the diameter and then count the screw threads you have on the length of one inch. of course the Continentals had to do it the other way around and take millimeters per thread for the pitch.
from what I see it's too coarse for metric. could be Whitworth or even British National Coarse.