Miniature cannon with proofmarks

[Kmaddock]

Hi all
Just picked up the following cute little item.
It is 8.5 cm long and bore is approx 5 mm

Bit outside my area but the presence of proof marks is what attracted me mostly.
I assume anyway that they are proofmarks just in front of the touch hole.

So does anyone have any idea if they are proofmarks and if so from what era would the item date.

I assume it is a child’s toy or would they normally have proof marks on them and if it is not a toy what other purpose would it have.

Thanks in advance, I was not sure if this is on topic for European Armour and if not sorry and Fernando please move to correct forum.

Regards

Ken