Another Pentel that is highly collectable are the Sharplet pencils. Starting at the top are three A115s, and a 03 A123. Next are four A125 Sharplet-5s. The next eight are A125s, a Olympic A125, three A125 Sharplet-2s, A Sharplet-3 A-125A and a A127.
Another A127, two A129s, a Sharplet P15. Last is a Sharplet 300. I have added more since the picture was taken. Add all of these to your collection.