1960s COX RED BARON (KNIGHT) BACKYARD FLIER #5300

UP FOR AUCTION I HAVE A 1960'S COX GAS ENGINE AIRPLANE. I HAD THIS SINCE I WAS A KID AND IT HAS MOVED WITH ME OVER THE YEARS. THE STRANGE THING IS ALL OF THE ONES I LOOKED AT FOR SALE ARE IDENTICALE EXCEPT FOR THE BOX. MINE READS THE SAME AS ALL THE OTHERS BUT THE PLANE IS CALLED THE RED KNIGHT WHEN ALL OTHERS I SEE ARE RED BARONS. IN THE PICTURE YOU CAN SEE THAT BETWEEN THE TWO WINGS A STRUT SEEMS TO BE MISSING. THIS IS THE ORIGINAL BOX. IF ANYONE HAS INFORMATION WHY COX CHANGED THE NAME PLEASE LET ME KNOW. I WOULD BE INTERESTED. GOOD LUCK BIDDING.