My father, an avid model engineer, died last year at 94 years. I am clearing his workshop and am finding many weird and interesting things. For example I have found some brass fittings for holding a coffin in place in a hearse!
But I also found a box of gears. I take it to be a tool for engineers to design and try out gear layouts. There are some pictures attached. There is a main box in mahogany with nice brass handles. There are two layout plates one of which was hidden in a secret drawer below the main box. The plates are both hand stamped with "UNIVERSAL GEAR BOX: DRG NO. ARM. 19910 ISSUE D."
Can anyone help with the background of this box and contents.
Geoffrey

