This is a Circular Slide Rule -KL-1.Made in USSR in 1960-s. Slide Rule is in good condition.
DIMENSIONS ARE 2.0" DIAMETER.
PAYMENT:Paypal
SHIPPING: WINNER PAYS $8.00 s/h. The time frame is from 7 to 20 Days with average about 14 days.I'll combine shipping for items won by you.