Category:1755 letters
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This category has only the following subcategory.
Media in category "1755 letters"
The following 4 files are in this category, out of 4 total.
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Letter from Leonhard Euler to Kaspar Wettstein, 1755 Wellcome L0037508.jpg 3,870 × 2,160; 1.78 MB
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Letter from Leonhard Euler to Kaspar Wettstein, 1755 Wellcome L0037509.jpg 3,432 × 3,966; 2.1 MB