https://drive.google.com/open?id=1UXKip ... sp=sharing
1959 came to Nueces County with a new problem, only northern parts of Corpus Christi had siren coverage from the 11 7 year old thunderbolt 1000's, after a meeting with city, county, and state officials, it was decided to place a very large order of sirens into Federal Sign and Signal Corporation.
The order consisted of 38 of the brand new Thunderbolt 1003 series for locations in and around Corpus Christi, 33 2T22 sirens to be placed in the western sections of the county, and 13 model 5's for rural sections.