As far as I'm aware, 'Imperial Contest' is the oldest commercial hnefatafl game. It dates back to 1855, and depicts the Crimean War, with England, Turkey, France and Sardinia facing Russia. I have never seen even a picture of the original 19th century game, but some information on it is here.
As I expect I will never have the chance to add an original copy of 'Imperial Contest' to my collection, I decided to create my own interpretation of it.
For the pieces I created flags, using carbon rods, plastic end caps and rubber washers, together with a bit of kite line. For the board, I chose chamois.
I searched the internet for the flags that the countries would have flown in the Crimean War, printed them off, and added them to the lines on the flag poles.
Then I drew a 9 x 9 board on the chamois, and added the coastal outlines of the countries around the Black Sea, giving the board a bit of a feel of a map.
Unless and until I see a picture of an original 'Imperial Contest' game, I'll never know how accurate my own interpretation is compared to the original, but at least I've sort of added 'Imperial Contest' to my collection of hnefatafl games.