The Collaborative International Dictionary of English v.0.48:

Seckel \Seck"el\, n. (Bot.)
   A small reddish brown sweet and juicy pear. It originated on
   a farm near Philadelphia, afterwards owned by a Mr. Seckel.
   [1913 Webster]

WordNet (r) 3.0 (2006):

seckel
    n 1: small yellowish- to reddish-brown pear [syn: seckel,
         seckel pear]