This is an extract from a magazine 'ZEITSCHRIFT FuR FLUGTECHNIK UND MOTORLUFTSCHIFFAHRT 9. JAHRGANG 1918 + 10. JAHRGANG 1919'
It is a .pdf document I found on Internet Archive (orchive.org)
The article describes the Isotta Fraschini 6 cylinder 160hp engine as used in the Caproni Ca.3 among others.
https://drive.google.com/file/d/1XvoblHejiSuBNN-0I6pYGASGQsjXZYKX/view?usp=sharingUnfortunately is is not complete. The last part ends with "Fortsetzung folgt" but so far I haven't been able to find the subsequent magazine. If any one has this, please make me happy.
The complete magazine can be found here:
https://archive.org/details/zfm-91Have fun
Willem