Description:

This set features three Labo Test Cards issued by NYNEX, Mitsui USA, and Tamra. Each card prominently displays the text "Labo Test Card" along with the card's monetary value in dollars: $1, $5, and $10 respectively. The instructions printed on the cards guide the user to lift the receiver, insert the card as shown, make a call to display the card value, and after completion, hang up and remove the card. A punch hole indicates the approximate remaining balance after use.

All cards have a clean, minimalistic design in black and white. The top portion of each card includes a numeric scale from 0 to 10 with increments, and a left-pointing arrow labeled "IN" indicating card insertion direction. Each card carries the combined logos of NYNEX, a stylized bell symbol, Mitsui USA, and Tamra, aligned horizontally along the bottom section. The $5 card additionally shows a punch hole indicating "09·02" value, suggesting prior test use.

These collectible test cards were likely used for verification or demonstration purposes within telecommunication or business contexts involving NYNEX and associated companies. They are part of a rare set showcasing corporate collaboration among NYNEX, Mitsui USA, and Tamra with precise test card functionalities and values clearly marked.

Since we have the world's largest inventory of USA phonecards for collectors, you will not necessarily receive the identical serial/batch/PIN number that we have scanned/pictured.