Baltimore, Dams, engineering, FILTRATION, glass plate negatives, Gunpowder Falls, Loch Raven, Museum, photography, Research, water history
Since my retirement is pretty much just around the corner, I need to start working on “Tying up some loose ends”, so to speak. At work, this means getting my files together and putting them in order so others may find important information. As far as my work on the DPW Museum archives, I do not think I will ever get this done. Just so much stuff.
I came back across an old box full of broken glass plate negatives. I guess it must be about 24 8″x10″ plates. Hard to tell because most are broken into a lot of small pieces. Some, like the one below, are in just a couple pieces, making restoration fairly simple. Years ago, before computer scanning and restoration software, the previous archivist either placed the pieces on a Xerox copier and scanned them or took a photograph of the pieces, placed together as best they could. They came out as negatives. I need to find those paper copies to help put the pieces back together.
Here is one of the better broken plates. The slivers from the crack will never be found by me. So I filled it in as best I could with the software. When I first started my water history research, I had no idea that Baltimore City built one dam on top of another. The upper right portion shown was built in steps, at an elevation of 188′. This was to be able to support the newer dam which would be built at elevation 240′. It was thought to be able to support a dam at 270′.
The jigsaw puzzle, restoration process is long and tedious and I don’t believe I will have the time to finish up this box of broken pieces. Let alone finish up documenting what is left to be done.
Mike Lane said:
We do appreciate all your efforts in preserving these things…and sharing them!
Ronald Parks said:
Thanks! It has been fun!