I just Googled 'dawes junior kingpin' and this thread was the fifth hit. Freakily my first proper bike was also a Dawes Junior Kingpin, also when I was 7 (bought for my 7th birthday in fact) and this was also in 1970, only difference is that mine was gold. Mine was also single speed, but I suppose that was the way the Junior came, and it did not fold. My sister got one for her 7th birthday as well, in red. They were so well made, I treated mine just like a BMX, years before they were invented, but it withstood this to the end when I was about 12 and was given a second hand Hercules Hustler. I cannot seem to find a picture of the Junior version of the Kingpin anywhere, or anything about it.