Direction des musées de Finlande
Prior to the fire of 1893, the church interior remained largely unchanged throughout the centuries. One change that took place was the treating of the inner walls with chalk; in the Middle Ages, the walls were decorated with Medieval paintings, but by the 18th century, the walls were chalked white. The fire revealed several pre-Reformation paintings on the church vaults, though contemporaries deemed the paintings artistically worthless and "primitive". Before being painted over again, the art historian Emil Nervander made replica paintings of them, which are currently stored by the Finnish National Board of Antiquities.