No. But I want one!Anyone know of these?

I think the "cast bar" across the face is just a horribly ground casting flash.Update. I don't think it's a hammer at all. did more sanding with OOOO steel wool and found a cast V mark on one side of the handle and stamped 0 2 on the other side. There is also a cast bar across the face of the 'hammer' end. I'll take pics after I sandblast it. I have 2 of them.
Lugz, you never cease to amaze. Great work.I found the OP's hammer. Even though it's rusty, it's not vintage. Patented (5,208,738) on January 25, 1994.
US Patent: 5,280,738 - Hammer with Angle Adjustable Head
US patent 5,280,738 Hammer with Angle Adjustable Head was issued to Mou-Tang Liou of Ta-Li Hsiang, Taichung Hsien Taiwan. It was granted on 01/25/1994.www.datamp.org