1 Sanguszki street. The commemorating plate by the entrance to the Polish Security Printing Works (PWPW): "To the heroic defendants of PWPW 1-28.8.1944"

On the outer side of the wall, looking left from the entrance one can see the plaque dedicated to Hanna Petrynowska MD a.k.a. "Rana", the sanitation chief as well as to Lt Czeslaw Lech a.k.a. "Bialy", the last commander of the Home Army Independent Group PWB/17/S.
They both died on the last day of defense of PWPW (the Polish Security Printing Works) on August 28, 1944.