It says:Kriegsmarine Großadmiral wrote: ↑08 May 2020 18:45Please let me know when you check this book. I am curious. I don't think they would make up this info on the Wiki page, they did quote the book after all.
Edit: I found Canaris' entry in this book on Google books. Can you please translate it? From the index it appears Canaris is mentioned only once, on this page (69).
Admiral Canaris, Chief of Intelligence of the German Defense Forces, was here for a lunch yesterday. This sympathetic admiral is certainly also a wise and erudite man. Before the lunch the admiral visited the Commander-in-Chief [Mannerheim] with Erfurth, where both received the Cross of Liberty, 1st Class, with a Breast Star.
In other words, it says nothing about the Oak Leaves. (It doesn't have to say anything about the Swords, because for military men the decorations of the Order of the Cross of Liberty were always given with Swords.)