This week a Newman Portal user searched on the term "1719 Sede Vacante." I have no idea what this is, but let's find out. NNP identifies only 9 auction appearances, so it must be a fairly obscure item. The most recentappearance is from Stack's Bowers January 2015 NY International sale, lot 3700, which identifies it as a German medal and catalogs it as follows: "Paderborn. Silver Medal, 1719. Sede Vacante. 44.67 mm; 29.2 gms.Zepernick-241. Charlemagne in a circle of shields; Reverse: Saint Liborius in a circle of shields." Wikipedia tells us that St. Liborius is the patron saint of Paderborn - but the story goes deeper:

The 1719 Sede Vecante is thus a medal that appeals to Eurpoean unity within the context of Christianity and French-German relations.

Images: 1719 Sede Vacante medal from Stack's Bowers January 2015 New York International sale, lot 3700 (realized $458.25).

Link to Stack's Bowers January 2015 NY International sale catalog on NNP:
https://nnp.wustl.edu/library/auctionlots?AucCoId=3&AuctionId=517153&page=72

Link to the 3/3/2013 E-Sylum article on NNP:
https://nnp.wustl.edu/library/periodical/15587