the matte silver wash retains nearly 100% of original finish
American College of Physical Medicine (Aviation Medicine)) and is credited with having supplied illustrations to Grant's "Method of Anatomy"
Footnote: Duncan McPherson was born in Iverness
So he now sent a radiogram to the captain of Discovery II
A First War Prussian Observer's Badge By Carl Dilenius Newly Listed the matte silver wash retainsA First War Prussian Observer's Badge by Carl Dilenius; In stamped silvered white metal, center enameled, 44. 11mm(w)x68. 70mm(h), weighs 10. 9 grams, marked with "square" mark on pin (attributed to Carl Dilenius, Pforzheim), in worn condition, very slight enamel chipping, crown on top broken off, nice old patina, circa 1917 1918, in very fine condition