A two-cylinder engine of this brand was installed on a Folkers #2 aircraft in 1923.

From Appendix 9: As the document from which the below illustration was taken is from 1919, it may not be the same model, as it is 4 years older.

-But it is a Spacke, after all, and applied to some aircraft, even though it was a design for a “Cyclecar”, a type of light car.

“Spacke 2V engine"