Rafael Halperin (1924 – 20 August 2011) was a prominent Israeli businessman, Orthodox rabbi, and the author of several religious books and an encyclopedia. In the 1950s, he worked in the United States as a professional wrestler in Vince McMahon Sr.'s Capitol Wrestling WWE.(wiki)
The book דרכי הקדוש ברוך הוא (quite an impressive title) authored by Halperin, contains a rather unusual Haskamah. While Haskamot today have generally evolved in to receiving an approbation from a well known and respected Rabbinical Figure who vouches for the book and praises the author, this one differs. The Haskamah presented in this book lavishly praises the author, but is given anonymously, with the reader not knowing who is this Rabbi who is praising the author.