A moment in time...captured

In today's age, we receive airplane tickets on-line and board our flights with our smart phones.
Has something been lost? A small paper memento to mark our travels? A simple souvenir of places we've been?
In March of 1946, Mr Alfredo Guillen flew Pan Am from San Jose, Costa Rica to San Salvador, on a DC-3. At 95 years old, Mr Guillen remembers, and his sons, Jorge & Fredy share his boarding pass with us.  A moment in time, captured.