Here’s what we’re looking for:
1. 1914 - Pre-WWI marker: Need a SN for a 1-Bis, 2-bis, 4-bis, 5-bis, or 7- bis
2. 1919 - Any post WWI model SN lower than 5219
3. 1923 - Any SN for a model 12 or 14.
4. 1924 - Any SN for 1, 2, 3, 4, 5, 5S, 6, 7, 7S, 7AS, 10, 10S, 10AS, 11 greater than 52,xxx .
5. 1925 marker - Earliest number possible for a 20, 22, 24, 26, 26ES, 28, 28S, 28E, 28ES, 30R, 30ES. We’re looking for a SN around 52,000 – 55,000 to confirm the 52,xxx Model 6, last known SN from 1924.
6. 1940 - Pre WWII marker: Any SN for 202, 208, 214, 220, 220S, 226, 226S, 232, 232S, 236, 238S, 244, 244S, 250, 250S, 256S, 259, 262, 262S, 268 which is greater than 225688 but below the 1949 marker 235450 .
7. 1946 - Post WWII marker: The earliest possible 222 SN. It should be 225000-230000.
8. 1963 - Earliest possible SN for 252 or 252S
9. 1972 - Earliest possible SN for 248 or 248S.
10. 1980 - End of Robust: Any SN greater than 861076
11. Any Robust which might have a dated receipt
12. Any memorablia which might reference Robust SN’s with a date.
By the way, in one week we've created a darned good SN dating chart for Robusts. I'd be surprised if there were really major changes. I will make the chart using old fashioned methods with graph paper (yes, mon Dieu, paper and colored ink) and post it.
Last edited by Argo44; 01/25/24 09:25 PM.
