Translations:Adventist Youth Honors Answer Book/Recreation/Pioneering/83/en
From Pathfinder Wiki
Strip some of the "hair" off the feather so that it will not get in the way of the writer's hand. 5 to 7.5 cm will do fine. Hold the feather in your hand to see how it wants to orient itself. Unlike a modern pen, one portion of the feather's shaft will be the "top". Usually, the feather will curve over the hand as you hold it.