This is not real, sorry. :-( look at davidbowieautograph and see the galery. You will see the difference soon. :-)
I saw him many many times front row but I was never able to get an IP. The item you posted is a poor forgery, the second name appears to be an attempt at Mick Ronson.
Yes I looked at a mick ronson to compare but it looked nothing like it. I wish I had got to see him.
The Bowie Outside is a poor forgery.
To Outside photo: It is bad fake.
Ziggy fake too. I think I know this forger, there is a lot of similiar attemps.
The printed Ziggy image is also fake, one need only look at the numerals The signed b/w promo from 1993 is genuine IMO.