Great stuff with the Tirpitz bulkhead!
I can vouch for the PSAB 111sqn pennant. Second hand anyway from the MR2 det. Serves them right for having a '24hr combat operations-DO NOT DISTURB' sign on their front door. I nicked that when I misappropriated their photocopier to enable some 'real' missions. We sent that sign sausage-side out of the fixed sonobuoy launcher and then supplied them with the lat/long when they asked for it back.
Closer to home CXXTS is hard to beat!