Wedgewood stove - oven wont heat, no gas hissing sound, pilot is lit, burners still work.

I have an old wedgewood stove, and used the oven and broiler fine the other day.
Afterwards the house smelled strongly of gas so I aired it out and relit the pilot which had gone out.
The pilot is still lit, but now when I try to bake the oven and broiler won't get hot. There is no sound of hissing gas like usual.
Anyone have any idea what's going?
The pilot is lit, I can't find any emergency cut off buttons or switches anywhere ( I have not pulled it away from the wall), and the burners...

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via Wedgewood stove - oven wont heat, no gas hissing sound, pilot is lit, burners still work.
by Miss F