Are you sure it is not the Bond that is £200?
A visit to the clergyman issuing the licence resulted in three documents. An allegation or affidavit, a marriage bond and the licence. The marriage licence was given to the parties concerned and normally does not survive. The allegations were on printed forms with spaces for the relevant details. The marriage bond was a promise by two people to pay the church a very substantial sum of money if the marriage proved to be invalid. Allegations and Bonds were retained by church officials, and there are published indexes.