Caboose 11552 (Frisco 1224) by Frisco.org Posted on December 13, 2014 Caboose 11552 (Frisco 1224) Caboose 11552 (Frisco 1224) at Irving, Texas on December 18, 1980 (John Nixon). This entry was posted in BN Patched, RT Collection and tagged 11552, 1224, Caboose. Bookmark the permalink.