Leningrad

Dear all,

Can anyone tell me which arrow should point forward on a Leningrad 1 lightmeter (the first in the series? The black or the red? When is the other one supposed to be used?

Best regards,

Stefan

the black arrow points galvanometre scale at high level lights
The red one points galvanometre scale at low level lights

high level lights uses cover over cell
low level lights uses no cover

pointer goes right to left
Regards