Yes, 1920 threepence struck in both .5000 and sterling silver. But I have no idea how to distinguish them. From what I read they are looking identical and I haven't found any info on figuring them out. I don't even see separate mintage figures.
Your dealer might be just optimistic - either way he would be 50:50 right.
Your dealer might be just optimistic - either way he would be 50:50 right.



















