I thought this was an odd bit of trivia, but at least interesting to know what was in the library of arguably one of the best biblical theologians of the modern era. I found this in Calvin Seminary’s copy of Friedrich Spanheim’s Opera in tome 2, bookmarking pages 913-914 on Sacraments in the Old Testament. It is a postcard from a bookseller in Philadelphia to Geerhardus Vos, postmarked August 1, 1891. Granted it is all circumstantial, he may have bought the book and never read it, he may have just stuck it in there (I did find some pressed flowers in another section among the leaves too!!), etc. etc. But like I said, at the very least, its interesting that this book was in his library.

Friderici Spanheimii F. F. Professoris Batavi Primarii Operum tomus-tertius. Lugduni-Batavorum: Boutestein, Luhtmans, du Vivie, Severino, 1701-1703.