Mummy says it must be..
#335 - 365
Bovril is the trademarked name of a thick and salty meat extract paste similar to a yeast extract, developed in the 1870s by John Lawson Johnston. It was sold in a distinctive, bulbous brown/dark amber glass jar.
I've come across many of these little jars over the years, but when i saw the larger 16oz jar next to the 2 oz and many others in a cupboard, I finally decided to take an image of them, as I liked the way the lids have mostly rusted away and the labels are barely there.
335dec01bovril and beef2015IrelandIrishmanlostabandoneddecayjars2 oz16 oz