What is a 1951 Earl Moran Marilyn Monroe "Next Time" pin up calendar worth?

I recently bought a 1951 Earl Moran pin up titled "Next Time" with Marilyn Monroe as the model. It measures 26" x 33" and is in mint condition. What is this worth?|||I'm not certain what the calendar would be worth but the original piece of illustration board was recently sold at Grapefruit Moon. That truely is a beautiful picture and depicts Marilyn Monroe pre-blond, more as Norma Jean is often depicted. Moran often used Marilyn Monroe as a model, spectacular art. We often use some of Earl Moran's work on our Retro Pinup Decals at Pinupsplus.com. We have hundreds of images.