It's a fold-up postcard. When its front and back covers are separated, several scenes around Plymouth around Plymouth are revealed.
The rock that started it all, Plymouth Rock, of course.
The Fountain to Pilgrim Mothers, and the Pilgrim Maiden statue.
National Monument to the Forefathers, and a drawing of Priscilla and John Alden.
Myles Standish Monument and Statue of Massasoit, Protector of the Pilgrims.
The Mayflower, Pilgrims Going to Church, Sarcophagus, Coles Hill and Model of the Mayflower, Pilgrim Hall.
Above, Grave of Myles Standish (in Duxbury, MA) and below, Grave of Governor William Bradford.
These are just some of the scenes in this set. The (presumably) original price of 10c is written on the front right-hand corner; I paid a quarter for it. Not bad, when a current eBay listing for this item is $14.99. Not sure how old this postcard is, but the seller states it's from the 1940's.
Well, whether one's been to Plymouth, MA or not, here's wishing you and yours a Happy Thanksgiving!