I repeat the information in the comment below, which answers the question.

Can request a copy of Pennsylvania code here:
http://www.pacode.com/faq.htm

The Pennsylvania Superior Court decision:
Commonwealth v. Daniels, 210 Pa. Super. 156, 168 n.I, 232 A.2d 247, 254 n.I (1967)

This was found through article:

Constitutional Law. Equal Protection. Longer Sentence for Females Than for Males Convicted of the Same Offense Denies Equal Protection. Commonwealth v. Daniels, 243 A.2d 400 (Pa. 1968)

Harvard Law Review, Vol. 82, No. 4 (Feb., 1969), pp. 921-926