Here's an 1854/3 which I bought on ebay for £7.50 in 2008.
I sold it to Andy Scott in 2014, and presume it was sold as part of his collection through Spinks, think 2015........but I don't know where it went.
I owned this piece before I had a digital microscope, so pictures of 4/3 in date are not great. However, if you stare at the overdate you can see the 3 appear from underneath, including the tip of the middle bar poking out at the right hand side of the inner part of the 4.........not often seen.