Fork identification

Hello everyone, I was hoping to find some answers here as I'm completely lost! This fork was from my grandparents cutlery set. I feel like I have looked everywhere for years trying to get any information on it to hopefully get my mum a set!

 

Chloe, does it have any marks? Have you searched on replacements. com?

Debora

 

Wonder if it's not International Silver. Identical to this in design but not decoration.

https://www.replacements.com/silver-international-silver-ins110-stainless-fork/p/2495441

Debora

 

It has 3 crowns on the back in an arch pattern. I've searched and searched but haven't found any makers marks with that design. That fork pattern always get me! I think I've found it but then I see those roses haha.

 

Where are you, Chloe? Where were your grandparents when they got this set?

 

I've been told it was in the 1950s as their wedding gift. My grandmother was from a place in Germany. It is near the black forest, near the south of France. She was 16 when they moved to Australia (Melbourne). My grandfather was from Melbourne his entire life.