GRRRRRRRR!!!
Well, it could be U557, there's certainly more evidence for than against. Interesting that the emblem is dual (presumably) and on an angle! I put mine fwd in the ctr, but if I had put it on the side I would have put it straight. That one tower close up shows the early spray deflector, and the gun deck "sponsons" (USN talk) wave-breaks. If only I'd had these before...
Wow, thanks Dougie