Okay, you could be right, gaspar. Maybe it was Charles Ditson that had no dreads built. I know one of the brothers wanted no dreads, and the other had dreads and regular. It's all spelled out in Tom Walsh's new book, but I don;t have my copy with me. Anyone?
I have an Oliver Ditson that is not a dread (but that doesn;t mean there are not dreads for brother Oliver), I really like it. It's the darkest Martin that I own, wood-wise. It's a 1M style.
Did you try Gryphon (CA) and Elderly (MI) and Bernunzio (NY), gaspar. They always have some Martins. they all have good websites --- Steve
ps Here's a thread on Ditsons, gaspar.
http://theunofficialmartinguitarfor...son-Ukuleles-shaped-like-Martins#.UjOeg8ZQHNE
As Wininboy states in the thread, and I second it based on Walsh's book, about 1/3 as many Oliver Ditsons as Charles Ditsons overall were produced. So, for rarity overall, Oliver Ditsons are less common by three fold than Charles. When I looked up mine in the book a month ago or so, I think they only made something like 300 of my model overall.
But, that doesn't stop me from playing it. LOL Tell us what you get when you find it. All three of the retailers I mention above have Martins for sale, I just saw. Cheers, friend.