The following QSL cards and accompanying letter were received by Mr. Martin Foltz in 1974 and 1975, a Short Wave Listener who submitted a reception report and request of verification to NST.

Front of a QSL card from NCS Londonderry - NST

Back of first QSL card received by Mr. Foltz, note that the transmitter location (QTH) is Rota Spain

Back of second QSL card received by Mr. Foltz

A letter accompanying the QSL cards sent to Mr. Martin Foltz
The letter describes the equipment used to machine key the Merchant Marine CW Broadcast ECMP/LCMP