Each year Lamy release a limited edition Safari and accompanying ink. In 2016 this was the famous Dark Lilac. Over time there have also been limited edition Studios, Scalas, and Al_Stars and this year the latter received the Charged Green finish plus a matching ink. Available in cartridges and bottles (US only ?), this did not sell well with pens still being available years later. It was 2019 or 2020 when I bought mine, with a box of five cartridges in the blister pack, from the bargain bin at my local WH Smith (UK based newsagent and stationary chain store).