Hi
I recently read from web that sheaffer without 14K mark is steel neeb.
I have many sheaffer without 14K mark on the nibs and some of them are very strong stub nib like steel nib
But I never had doubt about they are real gold
I have though these are 14K even without mark but now I'm confused.
I really cant think my OS lifetime nib is steel just because there is no 14K mark