Rare pony express envelope bound for Vermont to be auctioned in New York City

A rare envelope from the 1860s, the only one ever sent to Vermont via the fabled Pony Express, is going up for auction this month.

​CNN.com – RSS Channel A rare envelope from the 1860s, the only one ever sent to Vermont via the fabled Pony Express, is going up for auction this month. 

​Read More A rare envelope from the 1860s, the only one ever sent to Vermont via the fabled Pony Express, is going up for auction this month.