An interesting fact about this Pope is that he was known to use the sleeve of his cassocks as a place to dab his fountain pen to make the ink flow more freely. This sleeve clearly shows the spots where he did this.
The sleeve is a large piece of watered silk fabric. It is a second class relic of a saint, making it a very valuable addition to the Collection.
Visit Papal Artifacts/Pius X to view many items belonging to him and read the stories connected to this man who became the first canonized pope of the 20th century, and the first canonized pope since Pius V. Here is a link to those artifacts: