Direct-positive photographs on thin iron sheets, produced in cases, paper mats, albums, and loose formats.
- Photograph the complete object, front, back, edges, interior, marks, damage, repairs, labels, and associated material.
- Record measurements, materials, construction, inscriptions, names, dates, unit references, and provenance exactly.
- Separate observed facts from family history, seller claims, and later collector labels.
- Compare documented examples and search archival records.
- State identity, date, and association at the strength the evidence supports.
Date the physical format
Processes, mounts, cases, printing, paper, and manufacturing conventions establish a possible time range before names are assigned.
Format record
Evidence to prioritize
Magnetic plate, lacquer, image orientation, mount, case, clipping, hand color, studio props, and inscriptions.
Common problems
Later reprints, replacement cases or mounts, copied captions, mixed components, and modern reproductions can mimic age without matching the whole format.
Condition and alteration
List tears, losses, fading, corrosion, moth damage, trimming, mounting, polishing, washing, repairs, replacement parts, rebindings, added inscriptions, copied labels, and conservation work. Age and condition are different questions.
Value research
Compare only genuinely similar pieces. Match identity, format, originality, condition, provenance, completeness, date, venue, buyer’s premium, and shipping. A famous battle or person should affect value only when the connection is documented.
Compare current collector listings
Use listings to study format, measurements, marks, condition, provenance language, repairs, and market supply. Asking prices are research leads, not completed-sale evidence.
Search eBay collector listings