I miss that time when paper correspondence was leading and the only one resource of human's communication.. Calligraphically written letters on soft perfumed  paper packed in rice paper envelope with a family or personal wax stamp on the back!  In the 18th - early 19th centuries people had an entire science of composing a letter.. All intrigues around  secret court's correspondence,  hidden draw in a writing tables, books-caskets, le petit cabinet, passwords and secret language of signs, hidden doors and anonymous delivery person who was male or female it's hardly to guess.. 

  It's also very romantic to write a love letter to your sweet heart and wait for an long answer... You can say in a letter even more that you would say face to face. They conveyed a lot of political and personal information. 

that's why letters of that time are priceless because the entire medieval  history based on what has been written on those pieces of paper... 

   Or u happiness of opening envelope!! And reading it together with you close girl-friends somewhere at the boudoir or garden.. ahh...That life was a part of routine art...