- 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