Yep, like around 2 millennia.
The same people have been using three different types.
A large one, called 'huggare' in Swedish. Translated to English it would be a 'chopper'. To cut smaller branches, twigs for the fire and to sleep on.
Mid sized all round knife, to use in butchering, eating. Then a small blade to use in cutting the ownership mark into the reindeer's ears.
The women had also a smallish knife, size between the mid size and marking size.
That kind of knifes (sizes) are still made by people type Marttiini, plus some other manufacturers.
The main difference between the 'bushcraft knives' as advocated by RM and other modern personalities and those true working knifes is the thickness of the blade, plus they had a stick tang.
Design - check out Marttiini. 'Normal' birch handle, brass fittings. Reindeer leather sheath. Only sometimes a sheath of Antler
Full Antler knifes ( incl sheaths) are a modern invention, I think post WW2.