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County Londonderry, Province of Ulster, Ireland
- L.J. Richards & Co.
- [Philadelphia : L.J. Richards & Co., 1901]
Relief shown by hachures and spot heights. Includes "Index map of Ireland." "19." From: Memorial atlas of Ireland : showing provinces, counties, baronies, parishes, etc. ... Philadelphia : L.J. Richards & Co., 1901.
- Northern Ireland
- Londonderry (Northern Ireland : County)—Maps
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- Princeton: Historic Map Division, Special Collections, Firestone Library