Paper in Oil PIO audio capacitor KBG-I 0.01uF 10nF 600V +/-20% USSR Militarу

Paper in Oil  PIO audio capacitor  KBG-I 0.01uF 10nF 600V +/-20% USSR Militarу

Marked in rombus ♦ rusian military application

Exceptional quality and very rare capacitors, ceramic body 

perhaps the best Russian PIO

Photos are illustrative