P11 Vs N15 tank

Hi All.
The P11 tank has on the back the two pins for the fixing rubber spring.
Has the N15 the same pins or has the steel bracket welded for bolt fixing on the frame?.
Thank you.
Piero

My P11 has a G/N15 tank, and it has the two pins for the rubber bung, but they may vary by year.

Mike B.