Another shell to try and identify

[Collectaria]

Hello all I have this shell to also try and identify any thoughts would be appreciated.

85mm at top
rim 100mm
290mm long

markings 21.6.15 1G
18 PR II
A
MAC
DRY
CFF F
19 S5
F
CFF

Fuse 15 PE KN II 7/16

weight 1.36kg

Loads of markings on bottom

 

[AndyD]

British 1915 dated 18 pdr MK2.

Cheers,
Andy