Cross section of trench for steam and return mains. Philadelphia Steam Co. E. R. Holly, Eng., 1884 ca.
Plan
Work Title:
Cross section of trench for steam and return mains. Philadelphia Steam Co. E. R. Holly, Eng., 1884 ca.
Surveyor:
Holly, E. R.
Date:
1884 ca.
Size:
15 x 12 in.
Image Note:
The colors in this image may have been adjusted to enhance legibility, and may not accurately reflect the original item.
Map Features:
Steam line for steam heating company in Philadelphia
Media:
Blueprint
Source:
Image File(s):
RC-GG-y
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