@Martinevans123Last time I checked you could still click on an inline citation to get to the source material. (Since it has been removed from the article I have swapped your somewhat less relevant image for the one under discussion).  And I can confirm that Freud's lecture of 1933 (as cited)  does include the analog diagram on which the digital "iceberg model" - as referenced in in the text of the article - is based. Hopefully the New Year will bring a return to collaborative editing  instead of an attritional deletion agenda, bogus objections and obstructive edit-warriing. Seasonal greetings.