Ancient Water Systems in The Land of Israel Silver Medals Set, Very Scarce

Series of four rectangular medals designed by Eliezer Weishoff.
Sterling silver (925) medals, each 65x36 mm, 136 gr (total weight: 544 gr).
Including:
1. Shiloah Tunnel, Jerusalem.
2. Caesarea Aqueduct.
3. Hazor Water System.
4. Megiddo Water System.
Max mintage quantity: 360.
Wooden fitted presentation box.
Accompanied with two first day envelopes with four stamps of the four water systems, also designed by Eliezer Weishoff, issued by Israel Postal Service.
Issued by Israel Government Coins and Medals Corp.