Hello, Here's are my thoughts: 1st 1920 - VF-20 - If without dots, could worth $50+ 2nd 1920 - F-12 - Can't see if there are dots on reverse. 1st 1915 - F-12 - $5 2nd 1915 - VG-8 - Can't see if there is an H above the date. Did you check these? https://www.coinsandaustralia.com/coins-prices-value.ph...