There are no photos with Alec Guinness and Peter Cushing together?
Probably not, at least on set because they didn’t have any scenes together. I remember Mark saying somewhere that he said to Carrie that he was jealous of her to get to work with Cushing but then Carrie said that Mark got to be even more with Guinness so he shouldn’t be complaining.
I know Mark met Cushing since I’ve seen photos of that but haven’t seen Carrie with Guinness so had to google it and found some I’ve not seen before:
TESB premiere:
SW 10th anniversary pics: https://www.gettyimages.co.uk/photos/alec-guinness-carrie?phrase=alec guinness carrie&sort=mostpopular#license