Rev. Rul. 54-127

Where the name of the brewer has been changed but no change of ownership is involved, the new name may be placed on the metal kegs additionally as successor by indentation such as sandblasting or other appropriate means. After the new name becomes effective the brewer may be allowed reasonable time in which to place the new name on the existing cooperage but he should immediately place a sticker on the kegs bearing the markings prescribed by section 192.255 of Regulations 18 until the kegs can be so branded, which must be done as expeditiously as possible.