Still trying to upload from the phone, never mind, I found this old pic.
I saw these in Cadiz. Some of the records from the Cathedral. Was it souls recorded or gold from South America? The museum (Cathedral) has some of the most jem studded works of gold art for the church (guess they had first dibbs on what arrived in port) but for me it was the books. For scale, some are over four feet high.
Aside from books, Cadiz is a gem in itself, nice people, some glorious beauty in beaches and buildings. Not too crowded either – bonus.