( THE HISTORY: The Sheraton Empire, the Reservatron Innovation, and the Diners' Club Revolution ) ​As the Chief Curator of The Record, the guardian of analog history, I welcome you to the absolute, breathtaking zenith of post-war American capitalist ambition. The impeccably preserved Historical Relic that lies before you is not merely a piece of disposable hotel advertising. It is a forensic "Sociological Blueprint of Corporate Travel," meticulously engineered during an era of unprecedented American supremacy. This Primary Art Document represents the sheer might of Sheraton Hotels, a conglomerate that boldly declared itself "the proudest name in HOTELS". ​The initial, staggering revelation of this artifact is its forensic dating precision. If you direct your analytical focus to the illustration of the Penn-Sheraton building in Pittsburgh, you will discover a meticulously rendered postage stamp bearing the text: "GATEWAY TO THE FUTURE 1758 PITTSBURGH BICENTENNIAL 1958-59". This microscopic detail serves as an undeniable historical hallmark, confirming that this masterpiece was published exactly between 1958 and 1959—the heart of the Cold War and the dawn of the Space Age. ​The Visual Architecture of this document is a monumental four-panel layout, aggressively showcasing four hyper-stylized architectural titans: ​Park-Sheraton (New York): Depicted as a towering monolith against a dramatic night sky, with a glowing moon and the iconic Chrysler Building lurking in the background