Is this a round or flat wood stove gasket?

http://members.cox.net/michaelshaffer/gasket1.jpg
http://members.cox.net/michaelshaffer/gasket2.jpg
I'm guessing I have a round gasket? Just wanted to make sure..
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Looks like round but has, or course, been flattened in use. When you put the new stuff in, it will be very tight for a while but will take a set.
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