This specific set of items likely refers to a collection of materials produced by, or related to, individuals named Loxley, Matthew, and Edgar, possibly in conjunction with a “test card edition” format. A test card, historically, is a visual device used to calibrate and evaluate the performance of video or imaging equipment. Therefore, this phrase could indicate a special or limited release relating to the testing and calibration of certain equipment, potentially involving photography or video.
Such a collection might hold significance for those involved in archiving, restoring, or researching historical video technology. It could provide insight into the standards and practices employed in image and sound reproduction at a particular time. The unique combination of names and the reference to a “test card edition” suggests potential rarity and value to collectors and specialists alike.