I pay the same for half pennies as I do pennies 10c each. (I take the good bad and ugly tho I don't like cleaning the green ones) I just got a lot in the mail today, I will take a pic. It was $20 for 229 copper coins including postage + the dude chucked in 2 silver coins.
I just buy them to sell on my market stall, everyone just buys them for 20c each and they love it, some people look for there birth years, other buy $1 worth to show the kiddies what the old coins used to be like, and then I get the dealers who take all the interesting dates. I sold out last month so I had to buy more.
Shillings I am not quite sure, that's my dads area, now if it was threepences I could make an offer.
List the dates of the shillings and I will see if he wants them.