Hi, my name is*****'m a certified appraiser, and I'd be happy to help.
This portfolio was published in 1960, with six prints that could be removed and framed separately. Do you have all six?
I'm sorry, I should have clarified. There were eight different portfolios, each with six prints. I made the assumption you just had one of the eight. The two prints you mention are from Portfolio 1. Is that the one you have, do you have all six, and do you have any of the other portfolios?