"Time" Lockbox

Dad inspected the yellow Beatle on the bookshelf and found an arrow underneath. This pointed to a small black lockbox. The lockbox needs a 3 digit code and has the word "Time" on the bottom.

Theories
7-8-1 may be the lockbox code. This was found by Team Gimel member Iburnedmytoast

On those pages in the TIME magazine issue with Franklin, Ghandi, and Hitler on the front (matching the quotes from the mailings), an advertisement for the company in Company Logos appears. The year of the magazine matches to number on the same screen as the logo on the Road to Utopia VHS.

Wrong codes

 * 888 - numbers heard at or near timestamps on Menorah in "Dinner" video
 * 314 - sum (in minutes, 3:14) of time stamps
 * 078 - sum of numbers with Company Logos on Road to Utopia VHS at timestamps.