Blued steel rod with hollowed triangular section blade. Approx. 11cm in length with a 3mm diameter. The blade section is approx. 8cm in length. There are two small holes drilled near the end so that it can be attached to a makeshift handle using twin or cotton. These 'dagger' blades were often concealed inside standard pencils (with the lead still at both ends so they wree fully functional) and 'dip-pen' handles that were sent into POW camps by MI9. Also utilised by RAF aircrew, SOE and OSS operatives. Excellent condition. Stock code E15559.