Recently I was asked about a Radius 104 that a French collector had found. This is a model that I have never heard of before, so after several emails back and forth I have been allowed to post the lantern here. The lantern is owned by Serge Dupont. The lantern is very similar to a Radius 103 from the late 1940s or early 1950s but is a 500cp version. The only physical difference that I can see is the construction of the inner top. The jet and needle must obviously be different as well. I wonder what others make of this.