PHOTO PAPER THICKNESS NORMAL PHOTOGRAPH THICKNESS. REF NO DC7484.
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PHOTO COLTHROP FEB 1977
PHOTO COLTHROP CROSSING SIGNAL BOX 590
PHOTO COLTHROP LEVEL CROSSING V5 1979
PHOTO COLTHROP LEVEL CROSSING V3 1979
PHOTO COLTHROP CROSSING SIGNAL BOX - WITH ELECTRIC CABLE POST IN PLACE
