Collecting Vintage Railroad Postcards

Railroad postcards are very popular.  They attract collectors of railroad memorabilia, as well as postcard collectors.  Subjects of interest include trains and train stations, as well as street cars and subways.

Small town railroad stations can be quite collectible, more so if a train, cars, and people are included in the picture.

Rail Post Office Cancellations are also collected on any type of postcard. 

Railroad Postcards in the Age of Steam
A book devoted entirely to the railroad postcard.