ETC or ETH on my wallet?

[libertas]

I bought some Ethereum at the time of lauch in exchange for some BTC.
Never cared about it, as it's really not much, but now I remembered the buy and imported the wallet to ethereum software.

My wallet shows
Main account (Etherbase)
x quantity  ETHER

I suspect it should be ETC, but it'd be great to be ETH as the price is much higher.

Is this ETC or ETH?  How to know?