Bit of self-promotion here – I have gotten me a blog: The Harp Lounge. Basically where I post about harp-related things I find on the web. (My blog is not commercial in any way.) Come visit if you like. 🙂
Argenta, the double-columned cross-strung harp is a Greenway (maybe Greenaway), not a Pleyel. It’s in “The Harp; Its History, Technique and Repertoire” but I don’t have a copy at hand right now.