This might have been answered already. But start the zipper at the back, do the limbo under the curtain to get into your car and finish zipping it up. Classic Roadsters Duchess curtains zip back ot front, then snap to the side of hte windshield frame. they provided a zipper opening in the side of the curtain so you could reach through and attached the front snaps. You could also pay tolls without removing the curtain.
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica Roadster
If you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)