Information was hard to find on these.
There are no markings, but by the tarnish, I would agree with Google. Also, because they are silver-plated, I’m assuming they are vintage as you don’t really see silver plate happening these days. They’re pretty cool and heavy.
You decide. :)
Google says: These are Fracalanza pineapple-themed silver-plated dessert spoons.
Material: The spoons are constructed from stainless steel with a silver-plated finish.
Design: Each spoon features a detailed pineapple-shaped handle.