The Parker 61/65 Cloud Series was introduced in 1975 with the Cirrus, it was followed a year later by the Cumulus and Stratus, all the patterns being based on cloud formations. They were very popular but sold at the high end of the market and now they are quite rare and command premium prices compared to standard 61's or 65's.
This is the 61 Cirrus Ball Pen dating from around 1978. It is in very nice condition with only minor marks commensurate with light use. Both cap and barrel are brushed gold filled and are ding free.