Hi all, I have recently purchased a Swan SF1 black chased pattern lever filler. It's in good nick and lucky me, the section just slipped off without any heat revealing the perished sack. It's in good nick ie no bite marks, however the gold lever has some brassing to it. The nib is a stub with "Mabie Todd and co NY or V? stamped into it. The cap end has 1SF Med stamped around the barrel. Could some of you "swanners" identify the apprtoximate year it was manufactured? I paid £20 for it at an antiques fair so not sure whether I paid over the odds or not. Please see my not so good images. Thanks, Cluedoh