Friar Fred of Utah over @ GGCA gives the the following for Engelbert Clever Nachfolger in an older thread:
>>From what I can gather, the Nachfolger was a gent named Hommelsheim, a master gun maker, who, on New Year's Day of 1913 gave the business over to Kettner but operated it afterwards as a branch of Ed. Kettner. The addresses I have are not the same. <<https://www.doublegunshop.com/forum...Words=Delheid&Search=true#Post266973
Not sure if this is gospel as I can see Kettner sourcing the talented mechanics in Liège, but just a >>Successor<< ??? Not sure.
Thanks Wolfgang for the reminder.