"Vicente Vazquez" wrote in message ...
I've only seen pics of P-47's with the 75 , 108 or 150 gallon drop-tank, but
never seen this one ...

http://www.aviacaomilitar.com.br/webkits/hc001.jpg

Could be either a 200 gallon tank or possibly a cardboard tank:

"Following the early conformal 758 liter (200 US gallon) ferry tank
and the lozenge-shaped flat 758 liter belly tank, teardrop-shaped 284
liter (75 US gallon) and 568 liter (150 US gallon) metal wing drop
tanks were adopted. The P-47 also used British-designed 409 liter (108
US gallon) and 758 liter tanks made of plastic-impregnated paper.
These tanks were cheap and were useless to the enemy if found after
being dropped, though they could not store fuel for an extended period
of time."

www.vectorsite.net/avp47.html

Brooks