Parker Rialto / 88 Fountain Pen Cap in Laque Metallic Grey. (S217) (2 ratings) £10.00 Quantity: at £10.00 each Add To Basket Parker Rialto / 88 Replacement Fountain Pen Cap. Finished in Laque Metallic Grey with a Black Cap end. Fits all Rialto / 88 Fountain Pens. Made in the UK New Old Stock!!