A friend pointed this one out on the Internet and I had to share it and my musings.
This is a lovely piece and it’s really nice to have the dimensions. The person writing the catalogue entry probably honestly believed the bottle to be English based on the current location and of just an unusual form, optimistically dating it to the 17th century based on the patination and stitching.
I have a problem with the description: I think the bottle form is Arabic. You can see much earlier examples showing similar features here. If you look closely at the top, you can see a hole where a missing strap handle was attached. Similarly, there are a few stitches missing on the spout, it looks like the spout has been damaged and the leather trimmed to straighten it at some point.
I don’t like the date either. I’d be very surprised if it is earlier than 1850. It’s probably a souvenir of the Nile campaign of the 1890s, bought back by one of the soldiers. There’s a more complete example in the Museum of Lincolnshire Life in Lincoln that is firmly dated to that period and that provenance. It even has the same decoration. Here’s my photos (you knew this was coming, didn’t you…)