Ah, that might be the explanation. Jerry The Half Penny CD with all the varieties was made by Mal Lewanden. He is on Facebook, you can probably message him there and purchase a copy. I think they are 20-25 pounds.
Will do, but now you guys have got me puzzled. According to my copy of Freeman, the 1985 one, the 1874 date halfpenny (with or without H) only occurs with obverses 7, 8,9 and 10. Has this been revised? Dont forget we are looking at halfpennies here, not the pennies I am more familiar with. Jerry