Hello Dawn
Sorry - It was a tree on Ancestry and the pair getting married are James Bache and Hannah Jukes. The entry on the tree just says 1817 Marriage to Hannah Jukes, 29 Nov, Age: 34
St Martins, Birmingham
MARR: RIN MH:FF520
I thought it might be something to do with the IGI, but their numbers don't seem to match these. I would like to follow the reference back so I can have a search myself, if it's possible, but can't seem to find the origin of these reference numbers. So I'm a bit baffled!