8 canvas(es) — paginate below the viewer, or use the Canvases tab on the right.
[Memo on records of shell armor penetration]
- AI summary (β)
- This item is a record memo or table listing numerical values relating to the armor penetration of shells, comparing such items as caliber and barrel length (45 cal, etc.), figures that appear to be muzzle velocity or distance, and armor thickness (including notation in inches). The principal organization noted is the “Navy”; no personal names or ship names can be identified. The date and publication information are unknown, but numerals such as “1911” are visible on the final page. Keywords: shell, armor penetration, armor, Navy, 45 cal, 16 in, muzzle velocity, projectile, penetration recordAuto-generated by Azure OpenAI gpt-5.5 from OCR text (which may contain errors) and image captions.
- Item ID
- 27b73e5f-1090-45be-af9e-0e7a3ae20e98
- Catalogue ID
- 22390201
- Card catalogue
- [Materials relating to protection against projectiles] 2 of 2
- Category
- 軍艦構造:装甲・防御
- Holder
- 東京大学柏図書館
- Year registered
- 2007
- GCV entities
- Document / Diagram

































