Posted By:
Max WederThe Halper catalogue was published in huge numbers, and was available in bookstores for $19 for quite a while.
It is available on-line at Amazon still, starting at $15.
http://www.amazon.com/Barry-Halper-Collection-Baseball-Memorabilia/dp/0810967049/ref=sr_1_3?ie=UTF8&s=books&qid=1240685213&sr=8-3
Max