Campagnolo not only had heads for the Silca pumps, they had Campagnolo umbrellas too. I've never seen the instructions for the umbrellas but I'm sure it went something like:

1. To install your pump holding fixture, first locate the black, gold, and green decal that says "531". This is where you will install the Campagnolo pump holding fixture.

I had seen pictures of the Impero pump with Campagnolo head before, but I can't say that I had actually seen one live before. I recently bought an F. W. Evans that included a Silca pump with Campagnolo head and Campagnolo pump umbrella properly installed directly on the Reynolds decal, so now I own one. Included in the photo is one of the better hand-held calculators available in 1970. Back in the days before I became part of the permanent leisure class, I worked with a geologist from Brazil who claimed to have never seen such a thing. But, she was sort of mean to me and may have just been pulling my chain.