The genuine stamps are listed in Gibbons, I don't know about Scott. However, there are more forgeries and reprints than originals. Everything you need is here http://www.philatoforge.co.uk/CSSuezCanalCompany1868_Introduction.html
Scott lists them in the Classic Specialized Catalogue, but not in the Standard Catalogue. They are #L1-L4. Scott warns of forgeries, especially of the 40c value. The original plates for the 40c value were stolen and counterfeits printed from them.
The Serrane Guide has some details about the originals and forgeries, but your images are not good enough to make a comparison.
Good site, Dave. Thanks.