identifying Mug press sleeves

[Manx B]

[ATTACH=CONFIG]7307[/ATTACH][ATTACH=CONFIG]7308[/ATTACH]

i recently purchased several boxes of mixed blanks from someone local . Among, was a box of 6 new different type mug press sleeves, but have no idea which press these fit, neither does the person i got them from. I have a twin mug press so I would need to source another press that these fit. I have tried looking online but nothing seems to match,

Any help, suggestions would be much appreciated. The distance between attaching screws is 10mm