I picked up this bottle and carrier the other day. I nearly walked past it because of the condition of the bottle and the fact the moths had been so busy. The wool cover was completely missing but then I noticed the wide straps so thought it was worth a punt.
So I found it to be 1908 pattern with the 1921 adjustment to the securing strap and made in 1940. I know Warspite has one on his Blog.
I thought I would post the pictures for interest.
Any thoughts on the rubber bung ? I have seen pictures of Green ones before but not an orange one. It also does not have an eyelet fitted for securing to the bottle.