Out admiring frost when the 19th century showed up

The frost was so beautiful in today's bright low sun that I've been out with the camera for as much of the day as possible (and thawing in front of the fire with a cup of tea and the newspaper the rest of the time). Thank you, Saturday. I'd just been doing some macros of the leaves in the foreground of this when the Pullman hove into view. Irresistible.