I have two of these machines by Nervograph Ltd (J G Brenner) to restore, one is fairly original, the other revamped into a shock machine. The Nervograph is the interesting one. The game play is to control a pen over a moving paper roll keeping the ink inside the lines, at completion the paper is sliced off the roll and vended to the player as a single sheet. In the original Nervograph format the player chose one of three tests via three different coin entries. Wave, Straight and Zig Zag. The machine would allow the position of the pen to change depending on which test was chosen, giving a certain range of movement, either left side of the paper, middle section or right hand side. And originally player control was with two handles either side of the cabinet, but this wasn't popular so they added a steering wheel as well. And then they came up with a conversion of the machine into a newer theme called "Drivatest" which added a larger marquee on top and blanked off two of the three original coin chutes, and used new paper which has 6 x different British race tracks to steer the pen over. My machine is a fairly original Nervograph that was altered slightly to use the Drivatest paper roll. And the two handles were removed leaving just the wheel. There is a fully converted Drivatest in Aust that has both the handles and steering wheel. I've also heard of one other Nervograph style cabinet in the UK but no idea what game it is?
My fairly complete machine has nearly all the parts for me to return it back to it's original Nervograph format using all three coin slots, except for the paper it used. I've only been able to find a very small photo showing the back of one original paper sheet, and a 1930's book description of the rear of the paper, shown below. I've been able to guess what the original Nervo paper would look like from the surviving parts in the machine as shown below. Because the player had the choice of any of the three tests that means every sheet has to be basically the same design with all of them shown. I do have maybe 1/4 left of the original Drivatest paper roll, but not really enough to keep the machine running that long. Maybe someone on the forum will have an original paper sheet from the Nervograph for me to look at, or there could even be original unused paper rolls for either game out there!? At the moment looks like I'll just have to take the Drivatest paper to a printer and have the roll copied.
Will appreciate any help that can be offered, cheers, rory.