Exhibit 1 above is the birthplace of one Henry GREEN in the 1891 census, piece 1266 ED2 folio 27 pg 13. In the 1871 and 1881 census he gives his birthplace simply as Northampton, but by 1891 he's obviously decided to be a little more specific as to where in Northamptonshire he was born.
I think I've probably solved this one, there is a "Courteenhall" in Northamptonshire and as it turns out Henry was in Wing by 1861 and gave his birthplace as "Courten Hall" that year. Perhaps in 1891 this is a case of a glitch popping up when the enumerator transferred the details from the household sheets to the final census pages? It certainly looks like "sh" in the middle there to me!