<div class="description">
Diagram shows (1) "Trajectoire de l'aérostat (elévation)" and (2) "Courbe de trainage (plan)" to document the barometric measurements for altitude and distance covered, made by Gaston Tissandier in the balloon "Pôle Nord" during voyage from Champ de Mars, Paris to Anneau, June 26-27, 1869. (Source: A.G. Renstrom, LC staff, 1981-82).</div>
1869<div style="display: none;">date QS:P571,+1869-00-00T00:00:00Z/9</div>
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