The second object does have a small R stamped on it which shows its handed . I had convinced myself it was part of the door opening mechanism but I can not see any internals missing.
Thanks for the extra info on the pulley Steve. The cost is staggering for an original pulley! I went down found the center shaft, dug out a new bearing I brought and then spent the next hour and a half looking for the pulley outer again.
No pulley yet but the shop is allot tidier!! No doubt carefully put somewhere "safe".