We offer for your consideration this vintage Hardened Bevel Edge Block Square.

This Tool came to us through an Estate sale. The previous owner was a machinist in the aircraft and aerospace industry for many years. Keep a lookout for our other Vintage machine tool listings.

If you are collector of vintage machine tooling equipment, you might need to add this unique square to your collection.
This hardened bevel edge square reminds me of a 1,2,3 block with the 20 holes that run through it. This square measures 4 x 5 x .75 inches. Opposite the beveled edge sides, the surfaces are flat and fullered. 
In the long fuller there is an inset cartouche with "F.O. Bacon" stamped into it.
This may be a custom made machinists tool.

See the pictures for the condition of this tool. This tool is in very good condition, there are no gouges in the edge, there is no sign of rust or corrosion.