The red seems to have had its original reg number transferred off, as XUW points to a July 1959 not 1961, so this must be an age related reg.
The blue one's reg is bang on for 1960.
I used this website which someone suggested a while back
https://www.oldclassiccar.co.uk/registr ... etters.htm
WMU 211G wrote: ↑Sat Jul 27, 2024 5:15 pm '61 Morris Mk1 850 in that lovely shade of cherry red...
https://www.ebay.co.uk/itm/375552805608 ... SwPthmoAGl
And a '60 Morris Mk1 850 with some interesting extras...
https://www.ebay.co.uk/itm/276535514144 ... SwmvdmhUU4