@Spurzem: I've taken the liberty of creating Category:Type cylinders (two words [1]), so you might want to use that instead for the scope (Type cylinder of a Mignon 4). Personally, I'd prefer to link to the model category instead, something like Mignon 4, type cylinder or Type cylinder of a Mignon 4, but that's a matter of taste and totally up to you. Unless there's any difference between a 1924 Mignon 2 type cylinder and a 1925 Mignon 2 type cylinder, there's no reason to have the year in the scope. Keep it short, avoid unnecessary details. Standing by to support once the scope has been rectified. --El Grafo (talk) 13:09, 17 January 2018 (UTC)[reply]