I have created a PBB resource of a little book of sermons preached by Geerhardus Vos at Princeton Seminary entitled Grace and Glory. You can download it by clicking on the attachment link below.
Vos was professor of biblical theology at Princeton from 1893 to 1932. For many Westminster Theological Seminary grads such as myself, the contribution of Vos in shaping our view of the redemptive history of both the Old and New Testaments was foundational. Would that I could create PBBs of his Biblical Theology: Old and New Testaments, The Pauline Eschatology and The Teaching of the Epistle to the Hebrews, but alas, they are all still under copyright.
However, I will be creating a PBB of his little book published in 1903 entitled, The Teaching of Jesus Concerning the Kingdom of God and the Church, since it is out of copyright.