Shell with N marking need I.D. please

[LUCKYSTRIKE]

Could the 'N' stamped into the cartridge base mean Navy?

[wrecker]

Ive gone with the scorpian rounds now,thanks for all your help.

[spotter]

in case you decide to look for the correct cartridge case ive attached an image of one belonging to another friend so you get some idea of what to look for , The headstamp of the cartridge will be something like "76mm ARMD C"

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[zwerge]

Just to clear things up for me,was the projectile in the original post,75mm,76mm,85mm ?And if it`s in the wrong case then what is the original N marked case ?

[wrecker]

As i was relaying all info via a friend i was unsure of diameter of shell case,its 76mm and only marked with an N.
Heres a pic of fuse.