Aion Jewellery has dated this Art Deco Gold Stick Pin to the 1920s.
The birth of aviation gave rise to many items depicting associated themes and among them, jewellery was an example. The marks are conflicting with 5C and a further mark (either an 8 or a B). The gold however, tests to 15ct.

A superb and unusual piece and an echo of a bygone era. Dimensions below.
Postage and packing £12.00 UK
£20.00 Europe
£45.00 USA (including 10% tariff)
£28.00 Outside Europe
Condition :- Excellent, with no breaks, splits or losses.
Date :- c1920
Hallmarks :- Marked 5c, 8 or B. Tests positive for 15ct gold.
Height :- 5.8 cm.
Width :- 1 cm.
Depth :- 0.5 cm.
Aion Jewellery has dated this Art Deco Gold Stick Pin to the 1920s.
Specialists in 19th and 20th century jewellery.
You can view the stock and full dealer information on the Aion Jewellery Profile Page