From a heads-up by 'Karjala' on WW2F. Remarkable release of downloadable free-use images from the Winter & continuation Wars: SA-kuva-arkisto 170,000 shots, apparently. Large files too, from the ones I've looked at. Seems to be swaying a bit under high demand at the mo, and I could only get in via the Finnish or Swedish Entry points, but very much worth a shufti. Will be mining it for tanks in the snow soonish no doubt.