Here are some picture's of the mortar tube lids I found on that position.
There were about 20 of them in the same hole on the outer rim of the position.
They were al heavely corroded except these 2.
Also a big white enamel koffie mug. I think Brittish made but not sure at all, so all help is welcome.
A piece of a cartridge, it looks like the backend of an old shotgun shell, but way to big to be one. It looks like the rest was made from paper or cardboard.
A rotted spoon made of zink I think.
Also 2 other items, pieces from a pair of glasses, but the last one is unknown to me.