The unit mount ie attached tc the bat sections of Item 4 above with four (4) HAS 517-2 screws and anchor nuts. The 437X-1A antennas are installed at F. S. 213 and F.S. 238 on GAC installed mounts. The 437X-1 antennas are installed per EAS drawing 680074 dated 1-4-73 and approved by DER Walter T. Clark o