Southern Pacific RR 1985 San Antonio Division SPINS 134 PDF Pages on DVD. This is a DVD containing information of the Southern Pacific Industrial Numbering System (S.P.I.N.S.) for Southern Pacifics San Antonio Division. Includes Kirby to East Yard and Fort Sam Houston, Round House to Tower 112, Tower 112 to to Beeville & Darby (Beeville Branch), York Bend to Camp Stanley (Kerrville Branch), MoPac Interchange to to Lackland AFB and an alphabetical List of Industries Served,