Mark variant 1

The oval enclosure and M, R, B letter sequence preserve the source orientation and three-character layout.
Medium confidence comparison reconstruction.
Maker's mark comparison reference
Compare 2 source-linked mark variants recorded under M R B. These are reconstructions for comparison, not source photographs or authentication evidence.

The oval enclosure and M, R, B letter sequence preserve the source orientation and three-character layout.
Medium confidence comparison reconstruction.


The irregular rounded cartouche and M, R, B sequence are preserved with the same spacing and source-supported letter shapes.
Low confidence comparison reconstruction.
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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