First World War incomplete two room shelter without roof in base II:1 in [Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) land front defense line in Länsimäki, Vantaa, Finland. The base was built in 1915 - 1918.
The whole base contains:
* 85 meters of thrench
* 3 machine gun positions
* 1 observations posts
* 8 shelter rooms, two of them large two room shelters
More info:
* [Location in Google Maps](https://goo.gl/maps/U1vost2iD8LKF2KH7)
* [Wikipedia: Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg)
* [John Lagerstedt , Markku Saari: Krepost Sveaborg](http://www.novision.fi/viapori/eavaus.htm)
* [Finnish Heritage Agency site info](https://www.kyppi.fi/to.aspx?id=112.1000007646) (only in finnish)