Increasingly uncommon 8x10-inch black and white glossy bust portrait, boldly signed in blue marker in-person at a film convention appearance not long before his untimely death of a heart attack at the age of 63. In mint condition. Best known for his portrayal of the irksome, whiny Arnold Horshack on T.V.'s "Welcome Back, Kotter" (1975-1979), he went on to appear in a number of horror, sci-fi and fantasy films, including Jason Lives: Friday the 13th Part VI (1986), the hilariously awful Hellgate (1990) and Trees 2: The Root of All Evil (2004). He was also a celebrated children's book illustrator and appeared in a number of operas, hopefully not belting out his infamous "OOH! OOH!"