Ive just bought an Imperial Sovereign mechanical pencil to complete my Imperial Sovereign set of fountain pen and ballpoint. I bought the pencil as being 'serviced' however when it arrived I found it didn't work. I was going to send it straight back but had a look first. Thanks to the resources I found on this network I worked out that I found the lead had been loaded from the top end instead of from the point. They had also used the wrong size lead. It was too thick. Ive now got some 0.9 mm lead however I also noticed that the eraser had also been completely worn down. I can't seem to find the replacement size. Can anyone help? There seem to be a type G, a type P, and a type D. Can anyone help with information.