0001036050-97-000449 424B4 1 19970702 NONE PIERCE LEAHY CORP 0001020569 4220 NY 1231 424B4 33 333-23119 97635313 631 PARK AVE KING OF PRUSSIA PA 19406 6109928200 424B4 1 000103605097000449-001-seq1-424b4.txt FINAL PROSPECTUS