Antique Dutch Pewter 1/2 Liter Measure Anno 1880. Zwolle - H. Kamphof

On the handle the  inscription 1/2  LITER. Marked on the outside of the bottom with an oval caster mark with H. Kamphof  Zwolle for: 
Hendrik Kamphof. (Working  1864 – 1923)
Under the rim circa 29 verification marks, starting with P for 1880 till M = 1938

Mark verification office: 16 = Zwolle.

Literature:

Caster mark: Dubbe 2009 Page 374 Fig. 2134 -13

Verification marks: Wittop Koning / Houben – 2000 jaar gewichten in NL. Pages 94 & 95.

The Netherlands - Zwolle

ANNO 1880.

Height: 16,3 cm. (6,4 inches.)

Diam. base: 8,2 cm. (3,2 inches.)

Weight: 851 grams.