[Terra Nova]

Originally Posted by btns

It is a livery crest belonging to a member of the The Most Noble Order of the Garter.

The crown belongs to a child of a Sovereign or a child of Heir Apparent
https://en.wikipedia.org/wiki/Crown_(heraldry)

Thank you, btns,

This makes very good sense and is an excellent lead. The link to the various Crowns is particularly appreciated.

I wonder if the central device (lion over coronet) may give us any more precision as to which particular Child - or if we are at the end of the chase? Fingers crossed!

all the best,

Tim