Neat. I wonder what is the definitive list of dates that have the far last digits?
The 1896 is the famous one. Rob Turner has posted a great link to a fantastic presentation on Victorian large cent varieties: http://www.victoriancent.com/upload...tion_pdf.pdf
The sequence of 1896 normal to ultra-far 6 (slide 27) is amazing. There, Rob says these occurred because the last digit was hand punched.
Here's my farthest 1896, which combines a far 6 with an attached die break, which I always thought was a cool combo:


























