Henk-Jan,
Please read Torigoye‘s comment concerning the placement of „Daimyo swords“ on a rack. Because I‘m unaware of a special category of „Daimyo sword“ whether in sword literature nor sword glossary, so I suppose this label is suitable to swords out of Daimyo property. Contrarily to the comment of a member: ..."than probably half the swords out there are displayed the wrong way around“...I believe that counting the MMB members of total 3057 today, perhaps a handful of them are proud possessors of Daimyo swords. Well such categorized swords can be displayed by well-informed collectors in the recommended manner, giving this way a hint to another well-informed collector what kind of swords are displayed.
Recently a picture of the Ichimonji Imaaranami Tachi was posted on the board. This is kind of „Daimyo sword“ in my understanding.
Eric