Using that picture of the three of them seated at the round table (see Post 9), it appears detective on the left side with the Farsworth is a bit more forward to the camera than mr. warehouse himself holding the tesla gun who is a little back around the table. This matter of perspective will play into comparisons of the two props. However, when I use the top opened side of the Farnsworth in that pic with 1/2" side and 6" length, taking relative measurements of a blowup of them together, I came up with either 8.85" or 8.45" length for the Farnsworth. If on the other hand I made use of the more forground buisness end of the Farnsworth with 11/16" or side or 0.5" section (depending which you use) it comes out to around 6.2 - 7.1" which seems too small, which is why I mention the closest part of the Farnsworth to the camera has perspective issues to be concerned about. Using the back or top end/side of the Farnsworth for comparison you get closer to te 9" someone previously mentioned for the length.