Rare original 1960's Langevin 10013 VU meter panel with 4 Weston VU meters and two Langevin stepped attenuators with matching white knobs. VU meters are functional but the plastic on the back of meter #4 is cracked at the positive (+) terminal post - although the meter still works as it should. A metal panel is over the right side of the meter panel covering two holes. The matching Langevin SMX attenuators are for sale in a separate listing. Thank you!