UBB.threads Forums Uniform & Accessories The Honor Ring Forum SA Rings #1

Hi folks,
Gaspare posted a dodgy-looking SA ring a few days ago, so I thought I would show you my SA rings. Here is the first one.
I have had this for many years. Apologies for the poor quality of the hallmarks photo. The silver content mark is 800. Next to that are two letters, the first one being an 'S'. The second letter is too worn to discern. The third mark is a triangle with something inside but, again, it's too worn for me to make it out. I reckon this is a prewar ring, early 30s, perhaps even 20s.
Cheers,
Stephen