In addition to Francotte and the Masquelier-made Dalys, Stoeger also imported their "Zephyr" OU's which also looked very similar. (May have been Masquelier-made also.) And A&F imported an OU that also looked similar. I don't know how many of those were still being imported after WWII, but the Continental Arms guns, which I think were made by Fabriques d'Armes Unies de Liege, were being imported at least into the 1960's.