Imperial Russian Mosins.

[Blighty]

Perfect sense.

You could go the whole hog and find a VKT M91 in a beautiful arctic birch stock. V. V. Finn.

You could also track down a nice Sestroryetsk/Tula/Remington/New England Westinghouse/Izhevsk/Chaterellerault rifle but it will have little tell tale signs such as the SA stamp or tiny grub screws in front of the barrel bands. Basically little things that no one else would notice/appreciate. Any that you find will have served with at least three different armies and been pointed at three or more.

[saddler]

The Finns are in a lot of cases just lightly modified M91's.

The range arshins will be overstamped.
Stock may be Finnish pattern
Front sight blade changed

The earlier post-WW1 M91's are less messed with.
1920's onwards they started being less Russian style. ..even though most still used Russian receivers irrespective of what they ended up as, model wise.