Emergency Signalling Mirror Type ESM/2', complete with rectangular brown paper envelope with above inscription printed in black on front, the envelope flap is secured with the remnants of a metal fastener, the mirror itself is rectangular-shaped with rounded corners, the reflective side bears a see-through cross in the centre and the reverse bears the same cross surrounded by a circular reflective panel, around this panel the rest of the surface is painted black and bears diagram and following inscription in red 'Emergency Signalling Mirror (ESM/2)