Here is a 2010 signature from one of his Genesis books, Station to Station. The construction starts to reveal itself. Note the lack of a second apostrophe from the OP - although not a hard rule it is very unusual for 2010:
And here, in a 2009 advertisement, is a signature promoting the coming 2010 signed CD shown above. I have only seen one other example of this CD signed. That signature, in the same silver pen and with the same placement as mine, is even more abbreviated. What I call a "snub nose" Bowie. The 2009 signature and advert are below: