@mrotteveel sure is

generally I put ones that were both an initialism and something else with the "something else", so I probably should've done the same with the Czech one

at some point I had a category for "initialism with railway-related motif", but I abandoned that for a finer-grained split into several different motifs, and having separate categories for, say, "track/arrows with initialism" and "locomotive with initialism" seemed excessive