What type is this can you help
I feel the case has been cut down but the mouth of it gives no real indication of having been lathed.
Anyway the markings are; 2Pdr No.1 MkII then down on the middle left there is the No.79 further to the bottom is a very faint Broad Arrow and what looks to be a ZO or something last picture. Thank you for any assistance.
Projie OAL = 129mm, Body 40mm Dia, Driving Band 41.9mm Dia,
Case OAL = 121.2mm, I.D 39.9mm, Case Rim Dia 48.2mm (303 round for scale)