Tutankhamun 23k gold stamp Exhibition Issue

rfalias

So I have 3 of these pictured below.
I don't know where they came from, they came from my grandfathers collection of.... stuff.

I was given them a long time ago, and have no idea what they are or where they came from and google only turns up a few for sale, what's the history with these things?





Those are the three I have.
Another note, are they worth anything? What with a wedding coming up I could use a bit of coin.

Deebaser

my google-fu is only showing that these were apparently part of a limited edition commemorative book for a 1979 museum tour.

http://www.instappraisal.com/content/tutankhamun-exhibition-issue-23k-gold-stamp-collection

http://en.wikipedia.org/wiki/The_Treasures_of_Tutankhamun

khain

There's a Ebay auction of the whole set though I'm not sure if that's the best way to try and sell something like this.

Improvolone

Surely there is a stamp (possibly combined with coin) collecting shop if you're near a major city.,