[After hours] Big-time gadgeteer Adjust Share By Harper’s Staff, This article is only available as a PDF to subscribers. Download PDF Tags 20th century Biography Exhibitions Historical models International Business Machines Corporation Italy Leonardo, da Vinci Modelmakers Roberto A. Guatelli Traveling exhibitions United States More from Harper’s Staff Harper’s index Letters No one looks the same Adjust Share Close < Previous Issue | View All Issues | Next Issue > December 1951 < Previous Issue | View All Issues | Next Issue > Table of Contents Close