G28959 ~ Rare Original CBT-11A Russian Spec Sheet

We have a limited quantity of these rare CBT-11A alpha mica window Russian spec sheets (they are not typically placed in the boxes with the tubes). For a factory carton sometimes they would include 5 of these. These are not photocopies but the original folded up spec. Covers CBT10, CBT10A, CBT11, CBT11A. Keep in mind - these are in Russian Cyrillic!