started collecting before the age of 10, intrigued by the Indian cents and
Morgan dollars that his grandmother gave him.
Going through his mother’s change (with her permission of course), he
started a collection of Walking Liberty half dollars. At that point, half dollars became his
passion. The Walking Liberty collection was missing some key issues, at which
point Mark discovered that coin dealers could come to his rescue. Later, as a frequent visitor to Stack’s on West
57th Street, he upgraded the set. Slabs had not yet been invented, so he was
able to go through date rolls and pick out the best ones without paying a
premium. In time he fell in love with early half dollars, eventually forming
one of the highest grade and most complete sets of Heraldic Eagle half dollars
by Overton variety. Most of these coins
came from Stack’s, with some from Bowers and Merena.
started his professional numismatic career in Philadelphia working part time
for Andy Kaufman of Coins and Currency Inc. while attending the University of
Pennsylvania. From that institution he earned his BA and eventually his MBA
from the Wharton School. After
graduation he pursued other professional interests, while remaining an avid
collector, and returned to a career in numismatics in 2012.
is a passionate collector (hoarder), and has a sizable collection of antique
telephones, radios, electric fans, toasters, vintage toys, and almost anything
interesting in early technology.
has been a member of the ANA for over 35 years, and also is a member of the
John Reich Collectors Society, the Gold Coast Coin Club, and the Antique
Telephone Collectors Association.