An Homage to The Prisoner In Harold's Greenhouse?

When Donna Hayward visits Harold Smith's apartment in episode 13 (Demons, 2.006) a small image can be discerned behind the wire backdrop on the east wall of his greenhouse. Harold's apartment in the series has no other paintings, prints, or photographs on his walls. The image is unique. 

The Penny Farthing is difficult to miss once you spot it. 

Brightened and sharpened images from episode 13 (Demons, 2.006).

The image is a depiction of a penny-farthing bicycle. A black penny-farthing bicycle against a white background has become synonymous with the 1967 television series The Prisoner, of which Mark Frost is a fan. In David Bushman's Conversations With Mark Frost, Mr. Frost is quoted as saying, "The Fugitive became a big favorite of mine - echos of that showed up in Twin Peaks - but the one that most inspired me was when CBS ran The Prisoner in the summer of '68. That effectively blew the top of my head off in terms of what television could aspire to, and stayed with me forever." In the same book, Mr. Frost confirms that he made attempts to make a film adaptation of The Prisoner in the nineties but was unable to acquire the rights. 

If the image in Harold's home is an intentional homage, one wonders which member of the cast or crew placed it on set, if not Mr. Frost himself.

An assortment of The Prisoner icons and pins found on Google images.

Image source