Picture of the day.

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I believe that's a P-51A of the eight gun variety. Two under the nose and three in each wing, the outer pair are just out of frame on each side.

I hate to be pedantic Peter, but the aeroplane in the picture is a Mustang I armed with 8 machine guns; four .50s and four .303s. The P-51A was not the same and appeared later; it was armed with four .50 cal MGs, two in each wing only.
 

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