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| Second Welland Canal - Book 3, Survey Map 4 - Back Water in Thorold | 171 |
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| Second Welland Canal - Book 3, Survey Map 4 - Back Water in Thorold | 13 | 12 | 26 | 15 | 14 | 12 | 16 |
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| BUA20181f.jpg | 64 |
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