Great to see C & G enamellers in Liverpool getting a well deserved mention. This is an excellent firm and is still run by Gerard Williams who is carrying on their fine reputation. He has spent most of his working life there. Regarding Birds of Collingdale perhaps this was Alec and Ken's Father. Someone also asked me about Higgins "K" type trikes. The K stood for Kendrick who I believe were the original major producers of the two wheels in the front tricycle (Morgan or BSA tricar style) with Ackerman steering. Many years ago this style was very popular and the Olympia tandem tricycle flew the flag for this type of trike even when pneumatics came in. When this type of trike all but died out the only real survivor of this class was the " Neofold" but this was a tradesman's carrier with the added advantage of a folding front axle which allowed it to pass through narrow doorways. It wasn't until 1939 when a Reading firm run by a Mr.K.H.Wilkins revived a lightweight version of the Kendrick with new and improved Ackerman steering. The advantage of this style of trike was that they were cheaper to produce and you could use any form of gearing. Higgins and Taylor's also made them but I would think the K axles came from Fred Higgins for the Taylor models. I am not a great fan of K types and much prefer traditional trikes for handling but if you want one they are still built by Newtons in Wales they even make a conversion set.
Thats all for now. Keep those wheels spinning, in your memories if not still on the road. Be lucky Mick Butler Huntingdon UK.