'Zwei Quadrate' was previously featured in ‘Selections: Works from the ISC Board’, as part of Grounds For Sculpture’s Fall/Winter 2001/2002 Exhibition and held in partnership with the International Sculpture Center before becoming part of the GFS collection. The work juxtaposes two contrasting components, a slab of gray granite and a similarly sized form of steel. The horizontally placed, heavy, dense stone is cantilevered from the vertical metal section, setting up tensions that address balance and weight as well as the intervening space between the ground plane and the sculpture. The two, varying materials also offer visual excitement and comparison in regard to their colors, textures, and slight differentiation of forms. The clean, spare, straightforward composition and choice of materials is representative of other sculptures by Stielow.