Moved into a flat which has a old style cooker- the hob is easy as just point the hand held spark thing near the gas and click!
But on the oven not sure where the gas is coming from, have pressed down the gas and clicked the spark around but nothing. Though better try asking before continuing as had an image of a big explosion as was sparking away in there
It is an Electrolux & has a flap at the base of the oven near the front which can be pulled up to show a pipe running underneath.