The medal's obverse bears portrait of Gustav Killian, facing. Around, * BRONCHOSCOPY * MCMVII * FRONTAL · SINVS · OPERATION *; signed over right shoulder, ·J·E·ROINE· / ·FECIT·
The medal's reverse bears oil lamp at top. Around, AMERICAN · LARYNGOLOGICAL · RHINOLOGICAL · AND · OTOLOGICAL SOCIETY; across, · IN · RECOGNITION · OF · HIS · / · LEADERSHIP · / * · IN · * / · LARYNGOLOGY · AND / · RHINOLOGy · AND · / · IN · MEMORY · OF · THE · / · GOODFELLOWSHIP · OF · / · GVSTAV · KILLIAN · / · 1907 ·
The edge is plain.
Gustav Killian (1860-1921) was a German laryngologist and inventor of bronchoscopy.
The circular medal was struck in bronze by the Medallic Art Company of New York. It exists both with a Deitsch Brothers edge mark and with a plain edge. No mintage is reported.
Many thanks to an eBay'er who granted me the right to use the images and wishes to remain anonymous.
References: Baxter 297, MACo 1907-005