Buying a plate

[benwiggy]

Ooh, I find that very confusing.

In your example, there's nothing to indicate that it's different from a normal bar number in any way. At least on mine, it's in brackets.
So it would be very easy to read that 'end' of the cadenza as "bar 35".

[John Ruggero]

Yes, their system us confusing in either case. I prefer the style that places such bar numbers at the beginning of the first complete measure in the system.