Agreed. I do wonder about why this should be so? I'm thinking that Heatons were the preferred subcontractor, having been used since the 1870s, so on one level you'd think they'd get the better selection of dies? But if there was no difference in the quality of obverse die sent to both, then it COULD be that the slight variation in metal used for blanks might be the reason? Every collector is probably aware of the reddish colour that KNs have when worn, compared to the brown/black appearance of H pennies.