You have to put in a request to have it emailed to you. May take some time like a day or two. I've done it before. Looks like that was made some times in the early 1900's.
I just noticed you said you used mapp and oxygen, I thought it was mapp only at first read.I would have tried to melt it with just propane to see if that melts it. Because that would rule out pd or pt.
Jim