by Landis & Gyr

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PUBLIC-CARDS (Field-Trial, Official, Restricted)
Such cards were sold to the public and were to place phone-calls inside a specific country or from restricted areas like airport, oil-rig or military area. Public-cards (even Field-Trials or Official) always bear the logo of the Telco (here PTT) and hard-currency value (here 10.- swiss francs) or number of units (in case of risk of devaluation) stored in the card for phone-calls. Optical public-cards were sold in huge quantity all-over the world with more than 1.448.000.000 phonecards produced and sold to the public !
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# Article Title Author Hits
1 VIP Phonecards Online Catalogue 1807
2 Field-Trial Phonecards Online Catalogue 2225
3 Official Phonecards Online Catalogue 1984
4 Restricted (area) Phonecards Online Catalogue 1695