Looks good to me. The letters are following the same pattern as the numbers - Top to bottom, left to right. 'C' is likely a Clear button in case you mess up your code. XYZ was chosen instead of ABC since C already has a use.
Nah, the numbers are a grouping, the letters are a separate grouping, and there is a clear button.
The order is the same on both, in columns from top left to bottom right.
And the clear button is bottom right.
From my experience with mathematics, algebra, and calculus, C is a representation of analogous data storage. This means the C is the button used to change the coding. A better way to identify it would be to consider it as "clear" or "cancel". So like you put the wrong code in, use the C to start the code over
'C' is a special char here. All codes must start with it, leaving the rest grouped in two groups: numbers, then letters. X Y Z is a pretty common placholder for '11' '12' and '13'. 'C' will also function as a clear button, to begin entering a new code attempt. Probably why they chose 'C' as a simple label.
I may have gone with left to right then top to bottom, instead of top to bottom then left to right; but that's more personal preference.
I find the grouping and ordering somehow soothing, except that years of programming have taught me that number sets should be zero-indexed. Get that 0 to the top left please.
I had some theories as to why that was that way (swappable faceplate like an Engima machine ring setting?) so I went to their website. The plot thickens:
According to the company the UK isn't part of Europe, but instead belongs alongside Africa and the Middle East.
During the most recent glacial period, lowering of sea levels joined the British Isles once more to the continental mainland of Europe via Doggerland, until about 6500–6200 BCE.
Global warming over the past eight thousand years, I suppose.
Codelocks was started by Dorothea and Desmond Ryan, Codelocks’ chairman, out of their small fourth-floor apartment in central London in 1991 with the goal to satisfy the unmet need for a simple digital lock in the marketplace. After much research, they sourced a digital lock from Taiwan, and Codelocks was born with its first and still available lock: the mechanical CL250.