25mm x 137mm Oerlikon KBA cannon shell
Oerlikon 25mm cannon shell, Steel and aluminium head/projectile , steel case , No primer.
Case has a flat spot on one side between the chalk marks on photo
25mm = Head/projectile width
137mm = Case length
over all length = 223mm / 8.3/4"
Headstamp ~ 010 BM 87
UK SALE ONLY