Alvin - Glass Ink Well Sharpener - The Alvin Glass Ink Well Sharpener is an all-purpose woodcase pencil sharpener with a glass shavings receptacle that has the look of years past. Portable, convenient. Assorted colors. Alvin is one of the primary sources for drafting supplies and drawing equipment in the country. Creative Coldsnow is a pround retailer of Alvin graphic arts, drafting and fine arts products.