This post is linked to Maria’s Postcards for the Weekend. If you would like to see other folk’s posts on this subject - museum/university/library - please visit Maria’s blog and follow the links. They are always well worth viewing.
0043 - from a postcrosser
1533 - from Katya in Ukraine
1588 - From Martine in Corsica
1658 - From Irina in Bulgaria
1848 - from Danielle in Nebraska
1542 - from Susanne in Germany
4076 - From Renate in Austria who has sent me some lovely library cards over the years.