There are 12 pictures at dc.watch showing the lens with and without hood:
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The last two show the round aperture at F/2.8 and F/5.6
With hood mounted the combo looks a lot like the special edition black paint APO-Summicron-M 50 F/2 LHSA (there is also a black chrome BC version of this special edition):
Dec 10, 2020 at 04:55 AM
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