Meteor - Trade mark of Jan Nijdam, Akkrum - 1950-1980

Meyjes & Höweler, Amsterdam - Trade mark of retailer, c. 1940

Minkema - Mark of blacksmith Durk Durks Minkema, Oosterlittens - 1884-1920

ML - Mark of unknown blacksmith or owner, c. 1900

De Muis (image and text) - Trade mark of G.J. Leeuwenberg, Delft - probably made in Germany - c.1890

Multiplex - Trade mark of Multiplex Schaats and Manufacturing Comp. Ltd., Groningen - 1893-1906

A.W. Nauta Cz - Mark of blacksmith Abraham Waslander Nauta Corneliszoon, Heeg - 1875-1917

F. Nauta Wzn - Mark of blacksmith Ferdinand Nauta Willemszoon, Oudehaske - often together with SEBO label - 1930-1942

H. Nauta - Mark of blacksmith Heero Nauta, IJlst - 1865-1910

H. Nauta Ylst - Mark of blacksmith Heero Nauta, IJlst - this mark was also used by his son Rink and his grandson Heero - 1910-1958

G.H. Nijdam - Trade mark of Gerrit Nijdam, Oranjewoud - 1937-1968

Nooitgedagt - Trade mark of J. Nooitgedagt & Zonen, IJlst - 1902-1965

Nooitgedagt - Trade mark of Nooitgedagt, IJlst; c. 1955

Noorman - Trade mark of Jacob Noorman, Den Ham - these ice skates were mainly made by Kuipers, Garijp - 1920-1945

NSA - Trade mark of Nijdam, Akkrum, c. 1950

OB - Mark of blacksmith Otto Bergman, Beesd (onzeker) - ca.1900

Okkerman -Mark of blacksmith Jan Okkerman, Kokkengen - 1880-1900

Oudenhove - Mark of knife maker A. van den Oudenhove, Rotterdam - c.1850

P above heart contour - Mark of unknown blacksmith, c. 1850

P under 'tree' - Mark of blacksmith Piet Schakel, Polsbroek - 1893-1909 - this mark is also known as a P without 'tree'

P? - Mark of unknown blacksmith, c. 1900

PB - Mark of blacksmith Paul Borsje, Meerkerk - 1880-1930

PB, Heerenveen - Trade mark of De Friesche Schaatsenfabriek, Heerenveen - 1930-1940

Pool - Mark of blacksmith Gerben Pool, Warga - 1865-1905

Quick - Trademark of Shoe factory Quick, Hengelo; c. 1960

RAPS - Trade mark of Raps, Almelo - sinds 1988

RB -Mark of blacksmith Reinder Boorsma, Warten - 1890-1927

Rodrigues - Mark of unknown blacksmith, c. 1930

Romijn - Trade mark of H. Romijn & Co., Delft - the (peace) pidgeon hints that the ice skates were made in Germany by Gustav Offerman - c.1900

Rond - Mark of blacksmith Pieter Rond Pzn., Gouda - 1890-1920

Rooij - Mark of blacksmith Gebr. de Rooij, Waddinxveen - 1875-1910

Rooy - Mark of blacksmith Gebr. de Rooij, Waddinxveen - 1900-1928

Rooy - Mark on ice skates made by W. Roskam, Waddinxveen - 1930-1940 - Roskam bought the forgery of De Rooy in 1930

Roozenboom, Oudewater - Mark of unknown firm, c. 1950

Ruiter - Mark of blacksmith G.S. Ruiter, Akkrum - 1889-1901

Ruiter - Mark of blacksmith G.S. Ruiter, Akkrum - 1920-1970

Ruiter - Mark of blacksmith G.S. Ruiter, Bolsward - 1901-1940