10 Kronor

Tumba Bruk has produced Swedish banknote paper since 1755, one of the longest continuous security printing operations in Europe. By the time this series entered circulation in 1963, the facility had been nationalized under Riksbank oversight, giving Sweden an unusually tight vertical integration between paper production and note issuance rarely seen outside wartime arrangements.

P#52 ran for nearly three decades before retirement, a lifespan that invited significant wear on circulating stock. High-grade examples are harder to find than the long print run suggests.