Here's a couple more of the ancients i've accumulated over the years. As usual I have no idea what they are so check them out and let me know what you think. The're both about 10mm in diameter. The bottom photo is of the coin above it. I was trying to get the lettering a little more visible but still it's hard to see as there's corrosion in the litters. I've tried 3 times to get the photos right but I now have given up and there will just have to be 2 of the first photo as I can't seem to delete it without starting over. I
your first coin is constans of the thessalonica mint, you second is also constans i think..but i'm not sure about the mint mark.