On Thu, 27 Sep 2018 05:54:35 +0000 (UTC), Lurker
wrote:

Is this really a -J? A J with a D nose is not impossible, but likely?


From Wiki page on B-24 production:
PB4Y-1
U.S. Navy designation applied to 976 navalized B-24D, J, L and M
models built at Consolidated's San Diego factory, as well as one North
American-built B-24G. Later aircraft were equipped with an ERCO bow
turret.

From Joe Baugher:
Consolidated B-24J-145-CO Liberator MSN 3985/4084
44-40054/40063 to USN as PB4Y-1 32301/32310

So, the a/c was built in the -J series, but with earlier nose.