Group of four color photos, glossy and laserprint, ranging in size from 8 x 6 to 8.5 x 11, each signed in black felt tip by a legendary architect, including: Cesar Pelli, Richard Meier, Robert Venturi, and Peter Zumthor. Also includes: an original ink sketch of the "Freedom Tower" by David Childs, which is accompanied by a personal Skidmore, Owings & Merrill business card belong to Childs, who signs it in black ink; and an original ink sketch by Pelli of the Petronas twin skyscrapers in Kuala Lumpur, Malaysia, signed below by their designer. In overall very fine condition.