Invitation for the bicentenary celebrations of the Königlich Preussiche Akademie der Wissenschaften, Berlin, issued to T E [Thomas Edward] Thorpe Invitation card issued by the Royal Prussian Academy of Sciences to Thorpe, as the Royal Society's representative, for a celebratory session in the meeting room of the House of Representatives, Prince Albrechtstrasse No. 5 ['zur Festsitzung im Sitzungssaale des Abgeordneten-Hauses, Prinz Albrechtsrasse Nr. 5'] at 10.00a.m. on 20 March. With a note verso, instructing the bearer to be at the Palace no later than 9.45a.m. 20 March 1900