The factory of Robinson-Ransbottom (Ransbottom brothers) used the marks ‘RRP,’ or ‘RRP Roseville’ in the production of pottery. The factory stated its production in 1900 in Ironspot, Ohio. The firm was later merged in 1920 with the Robinson Clay Product Company of Akron, Ohio, and became Robinson-Ransbottom. Initially, Robinson-Ransbottom produced jardinieres and flower pots and later expanded to make gardenware after its merger. The factory functioned till 2005.