the nib has not been over flexed what so ever as you can see no crinkle in the nib and when i flex it the tines spread evenly.  Usually if they are sprung one tine is damaged more than the other and thus it doesn't quite flex the way it once did.  I do not know the previous history as this is a vintage pen, but since it was in my care there has been no cracks to the nib.

this was originally in another pen that in my opinion did not fit it very well.  I believe it is an aikin lamber and co no3 sized nib, but it is fitted into a waterman body.

NOTE: the cap is not an officialy waterman 55 cap it i believe is some kind of harrison/harris? company cap i forget.  It was one that fit partially, just enough to transport and to sort of keep the nib from drying out.

i've found the best way to use this pen is to fill it up with the lever but to also dip the nib.  because this pen can flex so much it sucks the ink faster from the feed than the bladder can take.  I'm going ot guess this 55 body and feed originally only had a semi flexible nib, or that the marriage of this feed and nib is not perfect.  If you don't flex much and just use slight pressure the bladder can easily keep up. Though just expect to dip your pen every now and then as you test run it, you'll know what i mean.  HOwever i do use waterman ink that has been evaporated a bit so my ink is definitely drier.  If you use say iroshizuku inks that were much more lubricated and you take better care of your inks than me, you may indeed have better results

i will empty the pen as best as i can, however i use waterman black ink to test run my pen, so if you don't want to contaminate yours feel free to use the same waterman black in your collection.

you are free to fully test run the pen, so long as you dont break the tip in any manner or use corrosive glittery inks and such that would damage the pen, i 100% don't mind you using the pen.  A flexible nib at this price point is only natural to want to test run the pen.

i am setting a high price because of how rare the nib is, i am not sure what one would sell for.  Feel free to offer anything, even if it's 10$, though don't be surprised if it gets declined.  I don't get insulted by low offers because that's the whole point of allowing offers is to see what people are willing to pay if no one thinks your price is good enough.

this is by far my most flexible nib i've come across and by far the most variation due to its ability to make true hairlines, though maybe not as fine as a vintage steel nib, but still finer than anything modern.

shipping is free as usual, i want you to get back the money you paid if you are some how unsatisfied.  Obviously your satisfaction is guaranteed or your money back, no questions asked, so long as it is returned in teh same condition.

the body of the pen is ugly and discolored with bite marks, however if you have a beautiful waterman 55 body, you can easily take the section from this pen and put it in that body.  I figure the selling point of this pen is the nib and not the body.  the lever box looks to be in good order and works to draw ink up.

the last photo shows what this nib is capable of.  Nearly 3mm of flexing with only a mere ~300 grams.  To reference a noodlers flex pen requires over 650 grams, i overload my gram scale to get decent variation.  Your typical medium flexible waterman takes roughly 450 grams of pressure to flex it a moderate amount.  I would not push the nib beyond this point as you will probably damage it, however it can indeed flex more than this.  That first number is not an error, this nib will indeed flex with barely 100 grams of pressure.  So if you have a heavy hand you will not be able to use this nib.  All these numbers are not scientifically done, simply flexing a handful of times on my gram scale and taking a rough estimate, however it will indeed give you an idea of how little pressure this nib requires.  I get 0 fatigue with 30minutes of flexing.

feel free to ask any questions you may have about this pen, look to my feed back for security in satisfaction.  only neutrals i get is with people who bought magic cards or sports cards wanting gem mint cards at average prices thus why i limit my card sales.

the one thing i am flawed with is keeping with prompt shipping.  I"m a full time student with a part time job so i lose track of shipping some times, however i do ship within 4 business days usually at the very least, nothing like those guys who take like a week or 2 lol.

i will ship internationally but only through the ebay shipping service and thus will not claim "gift" or any of that funny business.