Old postcards

Today I also found some old postcards,which are bought by my father,

For example,this is Warszawa,Hotel MDM,and my father dated it as 31/10 - 7/11/ 1980.

And these three UNICEF Postcards:

Nativity,Scuola Fabrianense,14th century,Pinacoteca Vaticana.

Nativity...Ms.Vat.gr.1613,page 271,11th century,Biblioteca Apostolica Vaticana

Adoration of the Kings...Domenico Michelino,15th century,Pinacoteca Vaticana