Studie av en jordglob från sent 1920-tal Problematiken i fernissat papper på metall

Abstract

This project is an object study of a late 1920s terrestrial globe now owned by the Department of Earth Sciences at the University of Gothenburg. Published by the Swedish company P.A. Norstedt & Söner in Stockholm and printed in Berlin, the globe presents an unusual combination of materials; paper gores on a metal sphere. As the background and context of the object are uncertain, archival search and auction sites were used to learn more about the publisher and globes made before and around 1930. The study seeks to identify the materials and methods used in the manufacturing of the globe, using visual examination as well as analytical techniques such as FTIR and XRF. Issues related to the state of preservation are investigated, with a focus on the impact the varnish and the metal sphere have on the paper, and the aim to present a treatment proposal. Three methods for cleaning and partial varnish removal are tested; water and ethanol, ethanol and methylcellulose and ethanol. The results were not fully satisfactory.