The 1912 looks like a 66 while the 1928 looks a little better, about a 67. The 28 also looks like it has a clash on the reverse.
very impressive. every coin u post here has a lot of details..esp on the king beard etc..even the circulating coins i have from 09 dont have as many details as u post of these old one.. everytime i give up the thought of collecting these brit coins... u come up with these posts and i really appreciate you sharing and posting (but to be honest its a bit frustrating that i cant find a single coin anywhere which can be close to what u have) PS: not sure whether you know it, but these shiny pics go well when the auspicious occassion of akshaya tritiya , hope it brings u more wealth (and hopefully to me too)
Some nice details for sure! It's hard to tell for sure from the pics, but I'm going to guess MS-66 Red for both.