Mark variant 1
Source-recorded mark text: silver watch case mark
Three front-facing crab-like watch-case marks in irregular, octagonal, and tapered polygonal office borders.
Low confidence comparison reconstruction.
Maker's mark comparison reference
Large Articles FIRST STANDARD .916 Large Articles SECOND STANDARD .833 maker's marks
Compare 5 source-linked mark variants recorded under Large Articles FIRST STANDARD .916 Large Articles SECOND STANDARD .833. These are reconstructions for comparison, not source photographs or authentication evidence.
- Source location statements
- Watch Cases · Small Articles
Mark variant 2
Source-recorded mark text: portuguese export mark 800 silver
Three Portuguese export marks, each 800 above a tower, in rounded, octagonal, and tapered polygonal borders.
Low confidence comparison reconstruction.
Mark variant 3
Source-recorded mark text: small mark 916 silver
Three small horizontally arranged eagle-head 916 marks with distinct irregular, octagonal, and tapered polygonal borders.
Low confidence comparison reconstruction.
Mark variant 4
Source-recorded mark text: small mark 833 silver
Three small horizontally arranged eagle-head 833 marks with distinct irregular, octagonal, and tapered polygonal borders.
Low confidence comparison reconstruction.
Mark variant 5
Source-recorded mark text: large mark 833 silver
Three horizontally arranged left-facing eagle-like 833 marks with distinct Lisbon-style irregular, Porto polygonal, and Gondomar polygonal borders.
Low confidence comparison reconstruction.
Sources and comparison limits
Maker labels and date or location statements follow the cited source records. Similar names across source collections have not been merged. Compare the photographed mark and the complete object before relying on a resemblance.
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