The Mentmore Autoflow button filler is a high quality pen. It doesn’t have the charisma of the Swan nor the variety of the Conway Stewart but it is a well-made, reliable pen.
Mentmore nibs often have a large blob of tipping material, like some modern pens in that respect. Some are flexible; most are firm. They resemble the Newhaven Duofolds in the type of nib they have.
Being not as highly regarded as the Mabie Todd, Conway Stewart and De La Rue pens, they tend not to be quite as expensive. This one is in splendid condition and has its box and papers. Unfortunately someone has written on the box. The fact that the box, papers and pen are still together reflects the care with which this pen has been treated. The gold plating is exceptionally good.