Telonic 122 oscilloscope

[yoviss]

Hi everybody,
in a electronic fair I found a Telonic model 122 Oscilloscope it has 11" b/w crt type 280 TB 7,
please have anyone some documentation about it ? ( s.m. or schematic...) it is a Japan made instrument with Matsushita ( Panasonic ) capacitors and components.....I think it is a National-Panasonic oscillo clone...
Many thanks in advance for any help !
bye from Italy