I think these are Swedish butter knives. They have an oily feel that tells me they were actually used.
One of them is marked “Ogdensaker” with an accent on the a. That is an actual place name in Sweeden. On the reverse is ““Alfons Aberg” with an accent on the second A. A taped on paper says butter Spurtles. However, when I research the term “Spurtles” I find it is a Scottish term and the examples shown don’t look anything like these.
They are all about 6 1/2” to 7” long.
