My sister purchased these two pieces from a flea market about 20 years ago. They are black and white photographs. One is of the Holy Trinity, that was done by Masaccio. He was one of the first artist of the period to incorporate the illusion of space in a painting. This painting is in Santa Maria Novella, Florence, Italy.
The second photograph is of the sculpture of the Virgin Mary and saints by Mino Da Fiesole, which is in the Fiesole Cathedral. He was an artist that was believed by the Medici family. He sculpted Piero di Cosmo de’ Medici.