The stock disc is for 3/Tampereen Rykmentti (Tampere Regiment). Here's a short history of the regiment.
The Tampere Regiment used to operate in Hennala from 1919 to 1949, and the Häme Regiment cherishes its traditions dating back to the 17th century.
The first Häme Regiment was founded by King Gustavus II Adolphus in 1626. Throughout the Swedish period, the regiment continued to operate, participating in all wars fought by Sweden-Finland. Under Russian rule, the unit served under the names of Hämeenlinna Battalion or Rifle Battalion until the Finnish army was disbanded in 1902.
Having participated under various names in Finland's War of Independence, the Tampere Regiment was formed in 1919. The activity of the unit ended at the beginning of the Winter War in 1939. The Häme Regiment was established on 1 January 1986 by uniting the independent units in the Hennala Garrison under one command.
The colours of the regiment are the old red and white flag of the Tampere Regiment, and the march of honour, March of Parola, is also inherited from the same regiment. The anniversary of the regiment is celebrated on 3 October, the day when the Finnish Ministry of Defence made the decision to establish the regiment.