LEOMINSTER DAILY ENTERPRISE, Mass., Dec. 1, 1960

* Korabl-Sputnik 3 - Sputnik 6
* Soviet dogs Pchyolka & Mushka
* Prelude to Yuri Garagin's spaceflight

The top of the front page has a six column headline: "Russia Sends 5 - Ton Space Ship Into Orbit With Animals Aboard" with subhead. (see images) 
Complete with all 12 pages, light toning at the margins, nice condition.

Background:On December 1, 1960, the Soviet Union launched Korabl-Sputnik 3 with two dogs, Pchyolka and Mushka, to test spacecraft life-support and reentry systems before human spaceflight. The mission carried other animals and scientific instruments. Although the flight went well, a reentry malfunction caused the capsule to stray off course, prompting Soviet officials to activate its self-destruct, killing both dogs and all onboard. Despite the loss, the mission provided valuable data that helped pave the way for Yuri Gagarin’s historic spaceflight in 1961.