Flour Bag, 45, Seal, Image by StuE, Found by Ged & Angel.
Found in Yorkshire, 18mm, 5.1g.
45, illegible inscription around // 0 above flower head
The O suggests it is a flour bag seal as flour used to be categorised into '00', '0', '1' and '2' grades, '00' being the finest and whitest and working down to the almost wholemeal grade '2' flour.