Up for sale is a vintage Hercules No. 20 brand noiseless & dustless blackboard eraser made by the Rosebud Art Co. of New York, also known as Raco. This is a used but very well made eraser that has stood the test of time, as it has been well cared for, & to my knowledge had sat in a box out of sunlight in my Grandma's smoke-free home from about the 1970s or 1980s until 2021, and has been stored in my smoke-free home out of sunlight since 2021. It does still have some chalk dust stuck inside it that I haven't been able to get out, much as you would imagine from a used eraser. Also, please note there is a missing part of the paper label towards the right hand side of the label on top of the eraser, as you can see from the included pictures. This eraser was in a box of miscellaneous things my Grandma gifted me in that 2021 timeframe I mentioned above. I believe, but can not prove, that this eraser dates from the 1960s, as the other items in the box next to it were things like a postcard from Indianapolis dated from about 1963, and a folder from a major university with an early 1970s date on it. As you can see from the included pictures, this eraser measures approximately five inches long on its longest side, two inches on the short sides, & is about one inch thick. This eraser will ship to you in a sealed zip lock bag that will itself be inside a small bubble-wrap padded envelope. International shipping is offered. Don't miss this chance to get a really cool & well made vintage eraser!