Still trying to narrow down the dates in Saint-Etienne for use of cm for chambers. Here is a Manufrance Robust Model 2, SN 23698 with 6.5 cm chambers, which on the Robust line would date to 1923.

https://www.gunsinternational.com/g...odel-2-16-ga-french.cfm?gun_id=100584177
[Linked Image from i.imgur.com]

There is also a Robust model 3, SN 8903 with 6.5 cm chambers, which per the current Serial Number chart would date to 1921. It appears in a YouTube video.

There is also a MF (model unknown) SN 20309, 7cm chambers. It is highly engraved with the "mDf" stamp as a special gun. With a top key I'm assuming this is a Robust:
https://www.youtube.com/watch?app=desktop&v=mJsfScq1PaQ&embeds_referring_euri=https%3A%2F%2Farmasfinas.blogs.sapo.pt%2F2007%2F03%2F%3Fpage%3D5&feature=emb_imp_woyt
[Linked Image from i.imgur.com]

Last edited by Argo44; 02/13/24 03:27 PM.
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