Collar Stud Escape Compass
One of the more igenious concealed compasses from Clayton Hutton\\\'s team at MI9. This pattern was designed to resemble the collar studs that were generally available from Woolworths and other retailers. Originally the compass face would have been concealed by a coating of white paint which would have been scratched off to allow it\\\'s use as a compass.
This example in good working order with very slight traces of whitener around the rim and some minor scratches to compass face. A scarce example of this pattern of escape aid.