iPad (1st Gen) 16GB WiFi + 3G ?

We are now selling our iPad (1st Gen) 16GB WiFi + 3G as recently upgraded. No issues with it whatsoever, have never used the 3G element of the iPad but feel free to bring a microsim to test it. Comes with charger but no box I am afraid, recently moved and must have lost it. We are based in Watton and welcome someone to come round, test the unit and collect.