This is an injection-plastic ship model kit.
From the Airfix website:
Launched on 7th May 1765, HMS Victory gained its fame by becoming Admiral Nelson's flagship during the Battle of Trafalgar in 1805. The victory at this battle ended Napoleon's bid for mastery of the sea, but cost Admiral Nelson his life. She had previously taken part in many major actions against Spanish and French fleets, and is now the oldest serving Royal Naval ship still in service, being the flagship of Portsmouth Command.
After being restored to the same condition and appearence as she was at Trafalgar, she can now be seen in all her glory at her home in Portsmouth by visitors from all over the world.
When completed, this model measures about 383mm long.