Quick! quick! Just stumbled across this pair of Royd Ela Mk1 transmission line speakers. Sharing the same design and drivers/tweeters as the Royd Apex. They were a joint venture between Joe Akroyd at Royd Audio and Rega. The biggest differences being the crossover and cosmetics of the cabinets.
This auction has a poor title, so probably few people would have seen it. As such these are likely to go for a song. Get in there quick!