1930 fireplaces?

I have moved to a 1930 terraced house with bay window in SW London. I am keen to know which are fireplaces common at the time. Please attach photos.. Is it the cast iron, the pinky beige or the slabbed tile art deco.
My house is a very standard 3 bedroom terrace in Sw20, ans is common in Morden too.
Answers:
Unfortunately quite ugly peachy or cream or green tile was common on the 1930s, which is why many were ripped out later.
If you can find a great deco fireplace to put in it would be fab but not original
I would imagine it would be cast iron, colours and tiles were only found in the upper frame of the market. Try a reclamation yard, they'll put you right.
1930's fireplaces tended to be quite plain, with a very geometric design, plain tiles. Haven't got any pictures unfortunately.

Addition

Just found this website:

http://www.britainsheritage.co.uk/1930-a.
Try to visit one of your neighbours to ascertain what type they have. Its surprising how helpful people are if you explain to them what you want to know.