Photos provided by Ken Skaught, Medallion Estates, digitally processed by Jock Dempsey.
Grid is 1" (25mm) square behind, and 1/2" (13mm) lines below. No dimensions provided.

Hand made brass anvil marked ZAUGG sn108. This appears to have been cast then finished with a coarse file. The shape is a little tall but attractive. The markings have no meaning that I can find. The "SN" might be "serial number".