1933 American Bar Guide by R C Miller

Glassware "Safety first wi hh Safedge" is tihe mot to of hotels, restaurants and cafes which concern themselves primarily with the complete satisfaction of their patrons. And because Sa fedge is guaranteed against chipping it also protects the profits of those who adopt it as standard equipment. GUARANTEE: If any S af edge No-nik Glassware becomes chipped on the rim from any cause whatsoever ii will be replaced free of cost, or the purchase price refunded on its return lo ihe dealer from whom ii wc:s originally purchased. Because all glassware isJrag ile this guarantee, of course, does not cover breakage.