No logos or marks still visible. I am certain this a Nupla. Total weight is about 20.4 oz, so I think this is a 16 oz head. Faces have a little wear. Handle is tight, with no major cracks that I see.
NUPLA M-16, 16 oz Ball Peen Hammer Fiberglass Handle INV17798
Vintage NUPLA No. 4 Auto Body Hammer w/1 1/2" Round Tip & 1 1/2" x 1 3/8" Square
Vintage Fairmount USA 16 Oz Ball Peen Hammer Head Only 16oz Blacksmith
Vintage Twist 3/16" Bolt Screw Extractor Bit
Vintage Craftsman 13/16'' SAE Shallow 12 Point 3/8'' Dr. Socket -V- 44338 USA
Vintage Flatz CP3821-16 Regular Speed Clearcoat Activator, 0.5 pt Can, Colorless