[cc]

The flowers on the tree were bright red if memory serves me right? I thought it maybe a spindle tree but the fruit is wrong. Thank you.

[snowdrops]

It looks like an immature horse chestnut(conker) maybe a picture of the leaves might help, I'm not good with trees!😱😊

[solway cropper]

Looks very much like a conker. Cut it in half and see what's inside.

[cc]

Odd the leaves didn't look like horse chestnut on one side of the tree but the back end looks right for horse chestnut. Thanks CC

[Christine]

If the flowers were red, it's something bred in America - have a look down this website - https://www.forestry.gov.uk/forestry/infd-74sj7v

Yeah - had to go and look myself as I couldn't remember if it was American or not but it was somewhere at the back of the brain. I believe these conkers don't do well if you want to enter a serious conker championship as they are too soft.

[cc]

Thank you