fortification works. Between 1863 and 1864 redoubts were built on Vallisaari, Kuninkaansaari and Santahamina islands. In 1860s and 1870s Russia purchased and then...
69 KB (9,221 words) - 11:41, 8 November 2024
978-951-209-704-3. Nieminen, Jarmo: Aarresaaret-opas : Vallisaari, Kuninkaansaari, Lonna ja Isosaari. Helsinki: Gummerus, 2017. ISBN 978-951-240-747-7...
5 KB (665 words) - 10:46, 16 October 2023