Age and origin cloverleaf broche

Any idea of age or origin please?
To my uneducated eye it looks well made. The whitish part looks plastic-like or shell-like. there looks a N carved on reverse but its too tiny to get a good pic .
Approx 2.5cm tall
Any ideas please?
Thankyou for looking

 

Trombone clasp suggests possibly French. The hinge is 1910s or 20s ish.

 

French, Lourdes souvenir!
The image in enamel is ND de Lourdes, the Virgin appearing to Bernadette Soubirous

 

thanks. I tought i saw a religous image in that blue enamel but i was not sure.

I hoped its hand made and not machinal
Were this souvenier sold in large numbers at that time?

 

Hum... thousands is not millions persons visited Lourdes since the miraculous apparition! Souvenirs were of course machine made on yours, only the assembling of the plastic petals and enamel center was done by hand...
Google images for antique vintage Lourdes souvenir trinkets

 

of course
I meant in 1910-1920. if the dating for this brooch is correct

 

Mon dieu! Now you've said that, of course I can see it. I've got a Lourdes medal somewhere. Souvenir of my catholic childhood.

 

Later IMHO, the use of this nacreous plastic speaks more 1950 to me

 

oh well that's a shame. I thougt 1910-20 was much better

I think it's fascinating how this scène has been reproduced so beautifully in 0,5 cm diameter.
Its so tiny....

 

I don't know how my post (above) wound up on this thread?
It was supposed to go onto the thread about an old clutch purse with silver embroidery? :O