Fake Or Real?

I came across these stamps while sorting they look strange to me can anybody help me?

The first 3 are 2 varities of a stamp from Republic of South Africa, right top Cuba revenue stamp, left bottom Jamaica, middle bottom line Mexico, finally a poster stamp royal family of Austo-Hungarian Empire, I'm pretty sure. I could be more specific but I'm at work with no Catalogues.

Mike

Wow, Mike.

I'm impressed -- that's some pretty good identifying without a catalog!

KirkS

Well thank you, KirkS. I try.

I'm impressed

Dianne( still without my marbles)

Now I've got a Catalogue, South Africa is SG# 238/b, Scott# 254/a and it lists shades varieties, plus perf variations, 14X15, 15X14, or 14X13.5.
Jamaica Scott # 77, I have this one in may collection since I started collecting.
Mexico issued from 1886-94 with many varities of colors & perferations on this one.
Franz Joseph the Archduke of Austro-Hungary, poster stamp was for his 80th birthday in 1910.

Thanks Everyone!
Mike