MG Car Repair: MG midget, wheel trims, decal sets

Question
I have a 1978 Mg midget and i noticed a discoloration in the paint and when i was inspecting i fount it was where a decal was once there and it is a special my question is what is the difference in the regular and the "special" is there a rarity factor parts difference what? and where can i look to get more info on this.

Answer
This was a USA-only marketing campaign which began in 1976.  A copy of the original advertisement is currently on eBay.  Search under MG MIDGET SPECIAL and you will find it.  The differences were: they came with an AM/FM radio, a boot rack, polished wheel trims, and SPECIAL decals.

New decal sets are currently advertised on eBay, see item #  110408430908

On the internet you will also find several USA Midgets with SPECIAL decals.  For example, see http://www.mgcars.org.uk/pics/dlowery.jpg