8.5x12.75” original envelope shows usual and typical edge/corner tip wear but is free of splits. Partial ink date stamp at lower right. Fine. Envelope contains complete 8-1/8x12-3/8” spiral-bound 1958 calendar. ©1957 HMH Publishing Co., Inc. As expected, calendar features several models either bare-breasted or in various states of undress posing discreetly, some not so discreetly. Of note is Jul. calendar page which features Marguerite Empey, who would later come to be known as Diane Webber. Repeat Webber image on envelope. Slightest trace of wear on spiral binding but all pages remain firmly intact and calendar is Exc./N. Mint. This is the first year Playboy issued a calendar and it is rarely found complete with envelope.