Check the listing for details. Vtg TESTA Microscope “K” Series Instruction Manual Original 16pg (B). Condition: Used. Listed at 15.99 USD. Vtg TESTA Microscope “K” Series Instruction Manual Original 16pg (B) (Lot B) Vintage TESTA Microscope “K” Series Instruction Manual | Original | Models K-21, K-22, K23, K-24, K-31, K-32, K-33, K-34 | TESTA Manufacturing Co. | El Monte, CA | 16pg | Very Good Preowned Condition from retired HS science teacher estate, tape mark on title page Pictures are of similar condition to items you will receive – check them out as part of the description | Your purchase will come careful packaged, typically in recycled packing materials, and mailed just as soon as possible after your payment is confirmed, usually same or next day, | THANKS FOR YOUR PURCHASE Any stands, bookends, or easels used in photos are not included | I reserve the right to upgrade to a faster USPS service or to use FedEx or UPS services at my discretion and at no additional cost to you when I believe it will provide a better experience.