Medusa

57.a.i Quarter black bonded leather binding, silver foil stamping on spine, printed front cloth board "The Kraken", blood red bonded leather rear board, head and tailbands, ribbon marker: 125(?) of 200 limitation - $95

57.a.ii Quarter black bonded leather binding, silver foil stamping on spine, printed front cloth board "Wave Seamonster", blood red bonded leather rear board, head and tailbands, ribbon marker: 75(?) of 200 limitation - $95

While the description says 3 different cover variants exist, only 2 were actually produced. Jerad has confirmed this when asked directly. The cover with The Kraken seems to pop up most often so we guessed that limitation exceeds that of the Seamonster in the wave.

CP website synopsis

So legendary a novel is Medusa that used copies of it command hundreds of dollars on the used market. It has been long overdue for a revival.  
       This ultimate edition of Medusa is everything you’ve been dreaming about: the complete novel, a new introduction from Colin Wilson, and thirteen of Visiak’s short stories, here collected for the first time, as a bonus. If you’ve ever been interested in this relatively obscure writer, this is the perfect book for you. Note: the cover comes with three different designs.