hermann glöckner durchbruch 1965/1980 steel, welded 520 × 374 × 675 cm17′ 12⁄16″ × 12′ 3 4⁄16″ × 22′ 1 3⁄4″ signed, engraving is part of the exhibition no. 5/2025 einblicke positions in concrete and constructivist art ll