The Bullroarer Atlas

MUS2026-181 - museum specimen

San at Oas (subgroup unrecorded)

Namibia - Oas farm - Omaheke sandveld - Kalahari, German South-West Africa - Southern Africa

Sacred / spirit

Oas healer’s corded blade, Weltmuseum Wien 85393.
Oas healer’s corded blade, Weltmuseum Wien 85393. Image source

Source term: Schwirrholz

Schwirrholz: German, 'whirring wood' — the standard museum term for a bullroarer; no San name was recorded for this blade.

When someone fell ill at Oas, a farm deep in the Omaheke sandveld, the healer's answer was sound: he swung a pointed wooden blade on its cord until the wood cried out, and a voice beyond the human joined the cure — in the stark colonial German of the 1909 Vienna card, 'then Satan speaks.' The blade was improvised sacred equipment, cut from a European packing crate, bored at the tip, and strung with trade twine. Whose spirit the collector's 'Satan' translated, and what the healer called it, were never written down.

Wenn ein Mensch krank ist, so schwingt der "Doktor" das Holz und läßt das Holz ertönen. Dann spricht der Satan.

When a person is ill, the "doctor" swings the wood and makes it sound. Then Satan speaks.

Weltmuseum Wien accession card, Post IX 1909, inv. 85393
Object
Pointed-oval blade of European crate wood, 30.5 cm, flat and very slightly convex, pierced at the pointed end and threaded with a long European twine cord; the complete rig survives in the museum photograph.
Function
Swung by a healer when a person was ill; the roar was heard as a supernatural being speaking.
Map confidence
high - GeoNames 3354990: Oas farm, Omaheke Region (RDF re-verified 2026-07-17); the museum geography names Kalahari, Omaheke / Oas, and Pöch used the Oas farm as his first field base in 1908.
Source location
inv. 85393; accession card Post IX 1909, Nr. E 12

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