Great Scott! Just when you thought your ‘Back to the Future Kit’ couldn’t get any better, here comes “Time Travel Memories II – Expansion Kit"! 

This kit includes:

"Radioactive III" envelope:

• Doc Brown’s 1885 Western Union letter to Marty
• Clocktower lightning bolt plan
• Hill Valley Telegraph Hill Valley festival 1885 newspaper clipping
• Hill Valley Telegraph "George McFly Honored" 1973 newspaper clipping
• Used DeLorean classified ad
• "One Nuclear Bomb Can Ruin Your Whole Day" bumper sticker
• Einstein’s metallic dog tag
• 'The Pinheads' holographic guitar pick
• Copernicus photograph
• Einstein photograph
• "Welcome to Hill Valley" postcard
• Hill Valley 1955 phonebook page with Doc Brown’s street address
• Clocktower photograph
• "Biff Tannen’s Pleasure Paradise" pin badge

"Dr. E. Brown Enterprises" envelope:

• 1893 Jules Verne train time machine blueprint
• 1985 DeLorean time machine blueprint
• 2015 DeLorean time machine blueprint

"Hoverboard" envelope (exclusive to 1.21 Gigawatts edition!):

• Brain Wave Analyzer 1955 blueprint
• USA Today "Youth Jailed" 2015 newspaper clipping
• Hill Valley Telegraph 1985 clocktower newspaper clipping
• Doc Brown & Clara Clayton 1885 photograph
• Marty McFly's HIll Valley High School 1985 Student ID card