Operative Plasterers' and Cement Masons' International Association - Opcmia Local 633

To encourage a high standard of skill, thus providing the trade with competent workers; to obtain and maintain a fair standard of wages; to assist each other in securing employment; to protect the jurisdiction of the trade; to thoroughly organize those working at our crafts for mutual benefit, protection and general well-being; and to advance and elevate the moral, intellectual, social, and financial conditions of all its members.