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Vermilion company Sigleli[?] armour 4-8-9 French inspection

AI summary (β)
A memo issued on August 9, 1929, comprising calculation and comparison materials on armor relating to “Sigleli armour 4-8-9” and “French …,” written in pencil on graph-ruled paper. Under items a) to f), there are sequences of figures, kg notations, and numbers that may indicate thicknesses and angles; roman letters such as “balance” and “Couronne” can be read. No personal or organizational names can be confirmed, and at the lower right there is a seal or notation reading “港岸” or similar. Keywords: Sigleli armour, French inspection, armor, warship structure, protection, calculation memo, Couronne, balance, kg, 1929Auto-generated by Azure OpenAI gpt-5.5 from OCR text (which may contain errors) and image captions.
Item ID
3b419590-9212-401d-a228-6953b1891910
Catalogue ID
10190801
Card catalogue
[Armor plate] Handwritten calculation sheets, design drawings, etc. “Test Report on Bofors Thin Steel Plate for Overall Protection of Aviation Materials” (April 1925)
Doc type
メモ
Category
軍艦構造:装甲・防御
Issued
1929-08-09
Extent
Navy ruled paper, written in pen | 1 sheet
Holder
東京大学柏図書館
Year registered
2007
GCV entities
Diagram / Document / Handwriting

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