Don,
I believe all of the backaction Crystal Indicator guns were made with extractors.
Mike,
Ejector guns with backaction locks & crystal indicators are rarer but they do exist (with both steel & Damascus barrels). My own Scott built gun (c1895~) has backaction locks with the Perkes patent intercepting sears; crystal indicators; steel barrels; Perkes patent ejector mechanism.
Blanch guns are especially worthwhile looking at if you want to see various combinations of these features & lockwork.
Regards
Russell
