Bought this No3 Release Swich at pudsey ,these were used to detonate boobytraps,yes its relic but its ok for me as a demo piece and only 3.I painted the inside components just to make it easier to see whats what.I think this may be a MK2 as the MK1 shown in the drawing does not have the extra spring as in mine,,,any further info welcome
![DSC00115.jpg](http://www.bocn.co.uk/vbforum/attachments/DSC00115.jpg)