From: https://en.numista.com/catalogue/pieces28487.html
The Australian sovereign KM# 10 should include all the dates 1887 through 1893 for both S (Sidney) and M (Melbourne).
This information is from the Standard Catalog of World Coins, 1801-1900, 7th Edition.
Evelynn
Honesty is never seen sitting astride the fence. ~L. Washburn