Entrance to the bunker

There are number of non-standard experimental constructions in this region. They were built here in the second half of the 1930s with a dual purpose - to try new designs and at the same time close the tank-dangerous direction to Leningrad. The picture shows the entrance to the bunker with remains of either a balcony, or an unfinished protective visor and a machine-gun embrasure of the entrance guard.