My contributions here are in four main categories:
1. Original photographs of landmarks and objects of interest in Pittsburgh and the surrounding area.
2. Original photographs of flowering plants, especially in southwestern Pennsylvania.
3. Original photographs of places of historic or architectural interest from my travels elsewhere.
4. Illustrations of good quality or unusual interest from public-domain sources. I usually adjust them so that they would be useful for printing in a book or magazine—for example, adjusting yellowed paper to white background—but I try to link to the originals, if they were found on line, so that anyone else can make different decisions about the adjustments.
You can reach me through my talk page.