Uncommon lot of four vintage glossy 5.25 x 4.25 photos containing ‘Snoopy sez’ designs promoting NASA workplace safety, with each depicting Charlie Brown’s pet dog wearing a space suit next to slogans like: “I hate carelessness, you should too!,” “A good day’s work never hurt anybody!,” “Who goofed? I hope it wasn’t you!!,” and “A safe & successful mission is your responsibility as well as the flight crews!” Reverse of each bears numbered Polaroid stamps. In overall fine condition.