I still have an old LAURONA side by side.
It doesn't have a model number that I can see, if I do my part it can still take a clay or two!
I have to say it shows wear from use on camming & bearing surfaces so yes the metallurgy is not the best. It does however have a rather valuable sentimental for me, it was originally owned by my cousin John who died early in life, who was a keen clay target enthusiast - hence the wear on the old girl!
Now passed down to me from the family many years ago, still loving looked after even if its no longer the fanciest shotgun in the gun cupboard, sitting right beside my wife Barretta Silver Pigeon it doesn't look out of place at all.