A very pretty eyedropper pen marked HYL on the anodised aluminium barrel band. This pen is fitted with a No. 5 steel nib and is a full demonstrator pen, with a very unusual green glittery decoration to cap and barrel. The only part of the pen that is not transparent is the feed (and the nib and band of course). It has an integral O-ring (also transparent) on the section threads to ensure an ink-tight seal when screwing on the barrel. This pen is supplied in a transparent plastic box along with a small eyedropper pipette.