50 pounds is as small as a real anvil gets.
I know where there is a 600 pounder! And a 450 pound vise to go with.
These are old railroad tools, left from the breakup of the west coast repair depot at Duinsmuir Ca.
The old depot was huge and its still there, but its empty now. They stripped it in WW11 because they thought it would be bombed first thing. They spread its gear out all around nearby.
The precision tools made for Paul Bunyan's locomotive are hiding under a plain looking quonset hut on Oberlin road in Yreka ca. Yreka Machine Works. When you walk back into the shop, you instantly feel like an ant! Radial drill presses with 8 foot diameter, precision ground revolving tables and knee mills that a Peterbuilt dump truck couldn't haul. A shaper/planer that can precision smooth a piece of steel 6 X 22 feet long!
Ginormous machine tools,..... with dust on them.
50 pounds is tiny for an anvil. They are actually quite rare this small. (for a real anvil that is proportional with a good horn n heel. Not the cast iron "anvil shaped cartoon objects")
80 to 100 is usually the smallest size seen.
yours Scott
Who is scheming on making himself a large jewelers/clockmakers stake anvil.
In the 10 pound 10" long neighborhood. Wish I had the lazyass's rebuilt power hammer today.. heh