"On 18 March, during artillery shelling, the Hermitage buildings
were hit by six shells, and four more fell immediately nearby. Five
shells hit the roofs, penetrated them and exploded in the attic, destroying
400 square metres of roofing and damaging the rafters and the attic
floor.
The shells that fell on the Winter Palace and alongside smashed some
3,000 window panes and caused a great deal of damage to the masonry
and plasterwork of the facades and interiors of the Winter Palace."
18 March 1942
From the report of the administration