Vintage Clay Ocarina Set ( 4 Heinrick Fiehn / 1 G.B )

Clockwise starting from the largest one (top left).

Large Black: Fiehn G9

Large Green: Fiehn C6

Small Blue: Fiehn A 2.5

Small Black Fiehn C 1

Small Green: Marked "G. B." Pitch is designated as "G".