..............No doubt "collectible" by rose-tinted, dewy eyed men of a certain age....especially in that condition....
I bought mine new for £375 in the summer of '76. Commuted a 15 mile round trip to work, all year round. Spent every weekend riding to Bournemouth beach and back from mid Hampshire, 65mph, flat out all the way there and back throughout that hot summer. Even managed a tour of Wales on it, laden with inadequate camping gear. Happy days.
Took my test on it, passed first time then sold it, 2 years old, for £325. Brilliant £50's worth