Stabilimento Grafico Césare Capello was a printing company founded in 1908 by Césare Capello in Milan at 7, via Lazzaro Papi. It lasted until the 1980s when the brands were bought by another company and used for other stationery products. There is an article on Cecami in the Italian Wikipedia but it is very short and rather incomplete.
The firm printed material aimed at tourists, eg guides, maps and accordion-folded picture brochures as well as postcards. Later view cards are identified explicitly, The Cecami logo is used on view and figurative cards from around the late 1930s to more modern times. Earlier illustrated cards bearing the CCM logo seem very likely to be to be from this publisher, which did use the initials CCM on the back of publications. Early CCM cards bear registration details which a good search of the Milan archives, if they exist, would decide. CCM cards include illustrations of children by A. Bertiglia, some which have been reprinted later, and art noveau style fashions. The WW1 Bertiglia example also shows the mark of Arca Ltd. This appears, sometimes as Arca Ltd Paris, on other makes of Italian cards and is presambly an agent's mark.
Cecami 1023 is a bit later than the target of ths site, but is interesting to compare with the many examples of WW1 cards here.