There are 2 records for the couple one 14 Jan 1787 Great Waltham and one 20 Feb 1787 Birchanger so assume the later date would be the marriage and the earlier date the banns?Only transcriptions though it looks like the originals were looked up earlier by Clincher.
When I looked at the banns page 10 entry 49 for confirmation of spelling of husband's name that looked more like JOSELYNE and both were said to be OTP and single. Banns called 4/2, 11/2 and 18/2 in 1787