I bought one of the B15n cabs from vintage blue, and they come without the Ampeg logo, of course. This B15n is the only Ampeg( I did have a VT-22 a long time ago) I've had with the chrome logo. How do they attach to the cab? I don't see any screws or nail heads on the logo that came with my cab (B12n) from JohnK; I assume they are just lightly hammered on using the studs that are attached to the logo. Is that correct?