Are there any pictures of the back?
Not yet. Once they are available, I will post them.
And they must be loaded after winning?
should be clear enough:
Sets 1, 7, 21 will be offered to bid at the full face value and loaded upon customer receipt
The other sets will start at opening bid of 0.011BTC
No, only the sets indicated (1,7,21) will be sold and loaded upon customer receipt.
Other sets can be funded by customer/end-user upon arrival if so desired.