Ultra Rare Waterman 455 Sterling Silver Overlay Fountain Pen 1925

Manufacturer: Waterman Model: 455 with Trefoil Overlay Year of Production: 1925 Nib: Waterman 14k "Accountant" Flexibility: Firm Material: Black Hard Rubber with Sterling Silver Overlay Filling Mechanism: Lever FillierMeasurements: 5 1/2 inches Condition: Overall good, with some damage sustained from use. Pen is missing pocket clip. Pen is engraved (see photos). Also there are small pin holes in the cap. I'm not certain if they serve a purpose. I've included photos. Other: Rare size with an overlay. Unrestored and original