Since I added the 24K gold Pentel Roller to my collection it is about time I show how it fits in the collection. These are all Pentel and range from the mid 70s to the 90s. Starting on the left you have three types of R-3s, black, green, blue and red R-4s, gold R-6, three R-7s. Next is the sterling silver and 24K gold rollers, two Lancelot's ( one being the 25th Anniversary pen), five Excalibur's and a SP300. I consider these pens to be one of my best collections.