Royal Mail Stock

Now that the Royal Mail is a publicly traded company anybody know what the stock certificate looks like?

Probably no one knows yet as the trading just now is done only between the BIG buyers and the official "everyone can buy and sell" happens next week. Then ordinary people wanting hard copy certificates will have to buy them for an additional fee (1.5 per cent of the value of share certificates).
Already there are rumblings that Royal Mail was sold off far too cheaply. Another rumbling involves the new Royal Mail wanting to "adjust" the universal service obligation which was meant to be written in stone.

Of course the unoversal service obligation will go, the only question is how soon?
When the "original" Royal Mail was split into Post Office Ltd, Royal Mail and ParcelForce, we in the Highlands found ourselves faced with higher ParcelForce shipping costs. It won't be long now before Royal Mail follows suit. Who knows where it will end?

So, in the UK mail is a private venture not a public one?

Mostly private. The UK government retained some stock....possibly for a future sell-off at rock-bottom price to the banks. The two banks which advised the government on the sell-off price got around 16 million pounds for their advice. These banks later picked up a large proportion of the stock at rock-bottom price for their clients. No conflict of interest there then.