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SiemensHalske Sh.IIIa KeskiSuomen ilmailumuseo . en Disassembled SiemensHalske Sh IIIa aircraft engine in the Aviation Museum of Central Finland fi Purettu SiemensHalske Sh IIIa moottori KeskiSuomen ilmailumuseossa own MKFI SiemensHalske Sh III Cutaways of radial aircraft engines Aircraft engines at the Aviation Museum of Central