Unused Gale & Polden card 1848, though it has the date “Jan 9, 1924” written on the back and is stained around the edges.  The caption could have said so many things, but instead writes “Above the Gateway of the Bloody Tower is seen the portcullis, the only one in England now in working order; probably it is the only working portcullis in the world.”  Well, we have Google, and Wikipedia, which tells us:  “In England, working portcullises survive at the Tower of London, Monk Bar in York, Amberley Castle, and Hever Castle.”  Grade: 4