Today we honor the adhesive pioneers... Sir Rowland Hill's efforts in Post Office reform led to the invention of the adhesive postage stamp in 1839. By introducing this revolutionary idea, Hill transformed the way we send mail, making it more accessible and efficient. R. Stanton Avery later built upon this legacy in the 1930s with self-adhesive labels, shaping the vibrant world of stickers we celebrate today. This image shows a 1920s stamped envelope from John Kunkel Small to Charles Deering, showcasing Hill's visionary stamp and its enduring impact. Peel back the layers of history at the Deering Estate! #NationalStickerDay #ArtsAtDeering #deeringestate