Apple 10w charger identify

It is impossible to tell from examining it from the outside, because there are companies that make fake Apple chargers, complete with Apple logo, serial number and model number.

It is very old, however, even if an Apple original, because Apple only shipped 10 watt power sources with the first generation iPad. All later iPads came with 12 watt power sources.

It is difficult to be sure from your photos which can only provide limited views. Please compare with Apple’s official descriptions in About Apple USB power adapters - Apple Support