LAMYHeidelberg, GermanyBrand · Paper goodsZ28 Fountain Pen Converter$6 – $8Stocked at 4Stocked in CA, MO, NYbobo design studioPalm Springs, CARetailer · Stationery shop$8Papillon PressWebster Groves, MORetailer · Stationery shop$7The Analog StationerBrooklyn, NYRetailer · Stationery shop$6