I got one! It’s labelled “Vader deactivates his lightsaber and turns toward camera.” Looks like the scene where he takes Luke’s saber and turns it on. I intend to get it scanned hopefully sometime this year after I get my other projects scanned. It’s a little red but it doesn’t look very damaged.
EDIT: It seems from the description that it’s the entire ~8 second shot of “Indeed you are powerful as the Emperor has foreseen” and that’s it because this one doesn’t have a white pole version included since the saber is being deactivated.