The name on the stamp is wrong, KNAAR did not exist, but it has to be KNARR.
A Viking merchant ship that traded to Iceland, Greenland, England and southern Europe from the 8th century until the end of the Middle Ages.
Used as cargo vessels but also to transport settlers and their belongings and cattle across the seas.
She was clinker built, strengthened by frames and double thwarts.
She was steered by a large quarter rudder; tiller brought over the gunwale.
Double ended with tall curved stem and sternpost.
Decked forward and aft with an open hold in the amidships.
One mast stepped amidships, carried a woollen square sail reinforces with strips of walrus or sealskin; taking spar extended the sail.
The knarr could also be rowed via ports.
Crew up to 50.
Reported lengths 13 – 34 metre; e.g. 25 x 6.2 x 3m.
The only knar found to be well preserved was in a shallow canal in the Roskilde Fjord, Denmark in 1962.
Togo 2000 425F sg?, scott?
Source: Wikipedia. Aak to Zumbra, a Dictionary of the World’s Watercraft.