The 'd' is based on the Geomancy typeface developed back in 2010 by onebyfour studio. This is the lightest weight, holding up well against the terrific winds battering against the side of the office (and driving the huge waves onshore these last few days).
If you'd like the editable eps and use the character for your project, or smash it up and send me a copy back, mail me. It's rather chunky file-size to host. The edit's I'll feature here as a changelog to track its development.