Some answers.
And the Tremcard page from NCEC which looks interesting given Duncan's question.Many of the other providers of instructions in writing systems have developed their solutions based on the Cefic Tremcard. For example, several systems use the same standard sentences and numbering system. However, while many systems use the Cefic Tremcard numbering system, the content of Cefic Tremcards is protected by copyright and cannot therefore be replicated by any other system.
from a CEFIC website here
No sign of a pricetag though.
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