Apologies if this has already come up - I had a good look round and couldn't see anything.
appeared on paleoplanet.net. A 3300 year old bow, more or less intact, preserved in ice was found last autumn in Norway. The post links to this article:
which features a simple but fairly useful picture of the bow. The left hand limb is damaged (the archeologists are speculating that's why it was discarded).
You can see something of both the side and limb profile. It looks like it has slightly stiffened tips (going by the undamaged limb) and either
a) quite a lot of recurve or
b) quite a lot of set
probably the former IMO, but it's difficult to tell.
The limbs appear fairly wide and flattish, which fits with other european bows of the period. Lets hope for lots of details and pictures once the experts have had chance to investigate it more closely!