Bullet/Stone cross bow

[Kmaddock]

Hi
I purchased the attached on a whim as it was going cheap at an auction and I had no real clue as to what it is except that it was a cross bow

so i now know it is a stone bow, approx 11 mm barrel

v well made with nice carving and a compartment in the but stock for "Bullets"
The trigger functions beautifully with the locking catch capturing the string (not present)
then to fire you pull the very heavy main trigger to get ready to fire and then to release you pull the smaller hair trigger, very sensitive

It was locked up when i got it but a bit of wiggling and lubrication of the components got it all functioning

some small worming but nothing too major

I put some rope in for a draw string and pulled back the springs about 2 inches or so and it functioned flawlessly (I will will not do this again as it cant be good for the weapon)

it is totally devoid of markings and i do not think it ever had any markings as the metal and brass is in v good condition

screws never opened and are in lovely condition

not much about these on the web that i could find
but i reckon it is late 18th century bird or small animal hunting bow for someone with money and bow is of European origin?

has anyone got any ideas as above is based on conjecture

comments, observations and questions welcome

Regards to all

Ken