Thanks for the welcome John1 and Basil
sel 691 thank you for such an interesting and informative response, really appreciate you taking time to give some historical insight into Sydney Mints operations. It's nice knowing it still stands and more so is part of your city's heritage.
It's a difficult coin to pinpoint, Marsh lists 3 1888 coins with the earlier 1st legend, all J.E.B variations. This one doesn't seem to resemble any, however it does seem to closer resemble the J.E.B spread on 1887 London mint coins.
Yes agreed, the gold being a softer metal causing less long term die damage.
I can see very fine hairline stresses at the top of the coin, I'd not noticed before.
There seems to be 2 independent cracks to these stresses as both the breaks along the top of Victoria and Britt have started and terminated from the rim of the coin. The one above Victoria certainly seems at a further stage having obliterated some of the lettering and forming a lovely trail of
Cud. The crack above Britt isn't as advanced, logically thinking there should be some struck that display the advancing degradation of this die?
I can find zero evidence relating to cracked dies on 1888 coins, however I can find some reference to a few from 1887 that were apparently using dies sent to Sydney from London only being used briefly due to the cracking.
I absolutely agree we have to assume in 1888 the 87 cracking die was switched.
I can find no sovereigns from any years of production displaying any cracking of the die to the extent seen here.
It certainly is an interesting coin. One that I'm enjoying researching
Thanks again for your reply!