This collection covers 13 undated Class III armour objects, delivered across 44 images in 7 ZIP assets. Undated mail objects present particular challenges — mail construction techniques changed slowly over centuries, making visual dating difficult, and the tendency to repair and reuse mail means many surviving pieces are composites of multiple periods.
Undated mail is among the most challenging material for museum cataloguing — without documentary evidence or associated datable materials, establishing the age of a mail piece requires specialist technical analysis. These 13 objects represent cases where that certainty has not been established, making them interesting case studies for scholars working on the technical analysis of historical mail.
| Field | Type | Description |
|---|---|---|
| object_number | string | Royal Armouries catalogue number (III. prefix + sequence) |
| object_name | string | Standardised object type name as catalogued |
| class | string | III (Armour — Mail, Lamellar & Plate) |
| period | string | Undated |
| image_filename | string | Original filename as catalogued |
| image_format | string | tif, jpg, or bmp |
| width_px | integer | Image width in pixels |
| height_px | integer | Image height in pixels |
| file_size_bytes | integer | Uncompressed file size in bytes |
7 assets · 13 objects · 44 images · Undated
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