If you were to search, online, for a Conklin Crescent Filler fountain pen you would find that the first 4 pages, 60 listings plus all the ads across the top of the page are for an new pen bearing the name Conklin Mark Twain Crescent Filler.
It looks something like this:
The pen is marketed by a company called 'YAFA', and costs around £200, it's made from brass and has a steel nib.
The 'real' Conklin Crescent filler, however, was first made about 120 years ago and looks like this:
This one is made from hard rubber and has a solid Gold nib, usually with flex. It is a longer, and altogether more elegant pen than the modern version and is a very rare item.
I have nothing against 'tribute' pens as such, and this one is better than most in that it retains the original filling system, most use a modern cartridge/converter filler affair. It is also very well made for a modern pen.
The first Conklin Pen company lasted fifty years, from 1898 to 1948. About fifty years later the name was resurrected and the designs used as a basis for the new 'Conklins'. Whether the results are a fitting tribute or a pale imitation is a matter of conjecture.
This original pen has now been fully restored, it is for sale here: