Whilst a personalised pen is usually considered a devalued item, the own brand variant is usually purchased at a premium to one of the base model versions. I have a number of Summit pens with matching Lang produced twins (National Security, Regent, Stephens, to name a few). Conway Stewart also produced their share (The Seal, The Grenville, etc), and I know Swan also produced a few including a K&J Super Pen, and a massive Whiteley Super Pen in my collection.
Occasionally one pops up that really is a bit out of the ordinary, and provides a chuckle - I once had a "Ogdens Lung Tonic" example but that is long gone. I would be interested to see what examples others possess, but will start by showing a "Twilfit Corset" pen which is associated with the old Portsmouth based company that seems to have been in existance since 1915. I guess this example is from the mid 1920's and might be of Lang or Mentmore origin:
Edited by Paul M, 28 August 2014 - 05:49 PM.