CCWing a BP Revolver kinda defeats the purpose!
They already DON'T know that you own it (No registration) so WHY would you want to tip em off that you had an unregistered gun???
A CCW, or CPL, permit doesn't specify the gun's design, model number or serial number. How would carrying a bp revolver concealed result in 'tipping them off that you had an unregistered gun'? Unless, of course, you used it, in which case it wouldn't matter if it had been carried open or concealed.