527 - 1950s? Numbered 42 - Relates to Kenneth Patchen poetry as envisaged for a book by him.
528 - 1950s? Numbered 32
529 - 1950s? Numbered 53 - Has the faint outline of what may have been an alternative sketch on the reverse
530 - 1950s? Numbered 23
531 - 1950s?
540 - 1950s?
545 - 1950s?
546 - 1950s?
625 - 1950s?
628 - 1950s?
656 - 1950s?
668 - 1950s?
670 - 1950s?
671 - 1950s?
673 - 1950s?
674 - 1950s?