Imperial Prussian Pilot badge in silver plated brass.
Non maker marked but almost certainly by the firm Junker.
Height – 71.77 mm
Width – 45.83 mm
Weight - 14.58 gram
Very similar if not identical to the badge pictured on Page 192 of Carsten Baldes book ‘Aircrew Badges and Honor prizes of the Flying Troops from 1913 to 1920’.