Early on, the mark would say Rookwood, then from the mid 1880s on, it would have the Rookwood logo, a backward R and a P placed one next to the other, and variations of that along with the artist's initials and the date. There was a dating system, with shaped numbers. There were indicators of different types of glazes. Rookwood had a very good system that's fairly easy to understand. If you have one book on Rookwood, you get a pretty good sense of how the marks work, and you can figure out who did it, when, and what it might be called. Who collects Rookwood today and what are they collecting?Humler: There's some people with eclectic collections who look at a lot of different things. And others who are very specific about what they collect, they might just collect a particular type of Weller or Roseville or Rookwood or a particular artist or period. We're all susceptible to the disease and have different manifestations of it. I've personally had a longtime interest in things Rookwood made from about 1915 and 1930, which is not mainstream Rookwood, but they're things I like. A lot of new looks and new glazes were in vogue then. Some of the artists were really doing some innovative stuff.

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