[morzh]

They are not obsolete, it is all what in Europe (or Russia) is called Short Wave Broadcast, and most of those still work fine. We never called them anything other than what ytou wrote - Short Wave and then the length in meters. Most advanced transistor radios had it.
These same wavelengths were covered by two SW buttons on tube radios but on transistor they made them separate and we called them "stretched" Short waves, as more slices allow better accuracy in tuning.