20mm Oerlikon identification

[Haenosaki]

Hello all,

I am looking for the type designation of this 20mm Oerlikon projectile.
The pictures of the Mk9 AP and the M75 AP do not match, so I am wondering what the designation if this one is.
Full text on projectile body:
20MM (PT)
LM01 FNB 83
CN OER L70
20 MM PT

Thanks for your help,

 

[MINENAZ16]

Hello,
No details on this round but FNB sounds Belgian.
Regards

 

[hasag]

20x110RB Oerlikon Belgium armour piercing tracer

 

[Haenosaki]

Thank you.
Do you know if it has some sort of number or type or something?