Not strictly true - it’s in my mum’s shed at the moment, but…
I went to Devon for a few days, and on a trip to a beach near Tintagel, I came across a cycle museum. They had about 150 old bicycles including penny farthings (ordinary bicycles), an early hobby horse, and a fully enclosed low profile recumbent speed record machine.
And they had 3 unicycles on display.
One was a Pashley UMX remarkably similar to my first unicyle. It has a lugged frame, and lollipop bearing holders held I place with 4 self tapping screws instead of nuts and bolts. Interestingly, the seat was very different from the one fitted to mine when I bought it in (about) 1987. Mine had a slightly curved metal plate about 10 inches by 2 inches, with a thin oblong sponge held on top with glue and a cloth cover. Ouch! The one on display had something more similar to a Viscount style seat, but about twice as wide at the back!
There was also a 1980 Pashley which was pretty similar, but had proper main cap style bearing holders - which suggests to me that Pashley unicycles got worse in specification in the early 1980s! I’d certaily rather have the 1980 model (main caps and good seat) than the 1987 model (lollipops and appalling seat).
There was also an unlabelled model on display. It looked like about a 12 inch wheel, and I’d say from the way the frame was made that it was a fair bit older. I couldn’t get close enough to get a good look at it, but something about the curves in the frame made me think it looked 50s or 60s. I could be wrong.
Also, they had a skate bike - as mentioned on another thread in this forum. It’s a bit like a unicycle, but with additional stability provided by a skateboard truck. The lady who owns the museaum told me that the skatebike used to be ridden by a child with no arms. He couldn’t ride a bicycle, or mount a unicycle, but he could scoot about the place on the skatebike.
And talking of stabilisers… they also had a ‘hen and chickens’ pentacycle! Only 20 or so were made, and they weren’t a success. They were designed for mail delivery. It has one large central wheel, about the size of a penny farthing wheel. This is surrounded by 4 (count 'em) small wheels. The rider sits up there like he’s on a big wheeled unicycle, but doesn’t have to worry about balance because of the four stabilisers. It is steered with handle bars though.
Anyway, I now know I own a museum piece! Bidding for this 1987 Pashley UMX starts at £1,000… do I hear £1,100?