Reference:Serial-numbers: Difference between revisions

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A photographed [[Reference:1069|ref. 1069]] caseback carries 21,836 below the reference. The dealer dates it to the 1940s, while the serial reconstruction's first listed point is 23,969 for 1928. That comparison does not give 21,836 an exact year. An auction archive also reproduces a Bonhams description for case 21,431 with a 1940s date; it is the same watch listed twice, not an independent dating sequence. Neither record supplies a British assay mark. [https://www.1stdibs.com/jewelry/watches/wrist-watches/rolex-nickel-silver-cushion-shaped-oyster-original-dial/id-j_18189072/ 1stDibs caseback photographs]; [https://www.collectorsquare.com/en/watches/rolex/oyster/ref-rolex-1069/lpi Bonhams entries]

The catalogues reviewed for [[Reference:1073|ref. 1073]] date individual examples circa 1926, circa 1930, in the 1930s, and 1934, but publish no case serial or assay mark. Those catalogue dates cannot be checked against later serial-year charts or hallmark tables. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-15-258 Antiquorum]; [https://www.christies.com/lot/lot-811717 Christie’s]; [https://www.collectorsquare.com/en/watches/rolex/oyster/ref-rolex-1073/lpi Bonhams archive]; [https://www.bachmann-scher.de/sold-watches/rolex-vintage-early-waterproof-oyster-kanalschwimmer-canal-mercedes-gleitze-radium-california-dial-stainless-steel-bj-1934-9052.html Bachmann & Scher]

Christie's catalogues three circa-1940 [[Reference:3064|ref. 3064]] cases: 56'924, 269'204, and 282'453. These are catalogue associations with individual watches, not a serial-year chart or production boundary. The records are [https://www.christies.com/en/lot/lot-5758921 New York lot 63], [https://www.christies.com/zh/lot/lot-5674834 Geneva lot 341], and [https://www.christies.com/en/lot/lot-5790151 Geneva lot 240].

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 A photographed [[Reference:1069|ref. 1069]] caseback carries 21,836 below the reference. The dealer dates it to the 1940s, while the serial reconstruction's first listed point is 23,969 for 1928. That comparison does not give 21,836 an exact year. An auction archive also reproduces a Bonhams description for case 21,431 with a 1940s date; it is the same watch listed twice, not an independent dating sequence. Neither record supplies a British assay mark. [https://www.1stdibs.com/jewelry/watches/wrist-watches/rolex-nickel-silver-cushion-shaped-oyster-original-dial/id-j_18189072/ 1stDibs caseback photographs]; [https://www.collectorsquare.com/en/watches/rolex/oyster/ref-rolex-1069/lpi Bonhams entries]
+The catalogues reviewed for [[Reference:1073|ref. 1073]] date individual examples circa 1926, circa 1930, in the 1930s, and 1934, but publish no case serial or assay mark. Those catalogue dates cannot be checked against later serial-year charts or hallmark tables. [https://catalog.antiquorum.swiss/en/lots/rolex-lot-15-258 Antiquorum]; [https://www.christies.com/lot/lot-811717 Christie’s]; [https://www.collectorsquare.com/en/watches/rolex/oyster/ref-rolex-1073/lpi Bonhams archive]; [https://www.bachmann-scher.de/sold-watches/rolex-vintage-early-waterproof-oyster-kanalschwimmer-canal-mercedes-gleitze-radium-california-dial-stainless-steel-bj-1934-9052.html Bachmann & Scher]
 Christie's catalogues three circa-1940 [[Reference:3064|ref. 3064]] cases: 56'924, 269'204, and 282'453. These are catalogue associations with individual watches, not a serial-year chart or production boundary. The records are [https://www.christies.com/en/lot/lot-5758921 New York lot 63], [https://www.christies.com/zh/lot/lot-5674834 Geneva lot 341], and [https://www.christies.com/en/lot/lot-5790151 Geneva lot 240].