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Maker's mark comparison reference

J M maker's marks

Compare 10 source-linked mark variants recorded under J M. These are reconstructions for comparison, not source photographs or authentication evidence.

Source date statements
1986 · 1927 · 1848 · 1990..2002 · 1928 · 1817..1822 · 1981 · 1899..1902 · 1902..1904 · 1809 · 1824 · 1977 · 1910 · 1926..1928 · 1989..2000 · 1988 · 1931 · 1991..1997 · 1896

Mark variant 1

J M: A pointed diamond punch with J.M forms and punctuation is reconstructed enclosing geometry; line reconstruction.
Line reconstruction
J M: A pointed diamond punch with J.M forms and punctuation is reconstructed enclosing geometry; oxidized reconstruction.
AI-assisted oxidized reconstruction

A pointed diamond punch with J.M forms and punctuation is reconstructed with the enclosing geometry preserved.

High confidence comparison reconstruction.

Mark variant 2

J M: J dot M slightly irregular rectangular boundary are retained in the source reading direction; line reconstruction.
Line reconstruction

J dot M and the slightly irregular rectangular boundary are retained in the source reading direction.

Medium confidence comparison reconstruction.

Mark variant 3

J M: The diamond outline and J, central stop, M arrangement without rotation or extra content; line reconstruction.
Line reconstruction

The diamond outline and J, central stop, M arrangement are preserved without rotation or extra content.

Medium confidence comparison reconstruction.

Mark variant 4

J M: Paired round lobes with two large initials preserve the source's shared center pinch, reading order, and outer contour. line reconstruction.
Line reconstruction

Paired round lobes with two large initials preserve the source's shared center pinch, reading order, and outer contour.

Medium confidence comparison reconstruction.

Mark variant 5

J M: J, separator dot, and M retain the source order within the rectangular punch; line reconstruction.
Line reconstruction

J, separator dot, and M retain the source order within the rectangular punch.

Medium confidence comparison reconstruction.

Mark variant 6

J M: J M symmetric lobed cartouche are retained in their visible orientation; line reconstruction.
Line reconstruction

J M and the symmetric lobed cartouche are retained in their visible orientation.

Medium confidence comparison reconstruction.

Mark variant 7

J M: J-like and M-like pair retained inside the compact irregular rectangular border; line reconstruction.
Line reconstruction
J M: J-like and M-like pair retained inside the compact irregular rectangular border; oxidized reconstruction.
AI-assisted oxidized reconstruction

J-like and M-like pair retained inside the compact irregular rectangular border.

Medium confidence comparison reconstruction.

Mark variant 8

J M: The clearly supported J and M letterforms in left-to-right order with worn serif-like contour geometry and no decorative outer invention; line reconstruction.
Line reconstruction
J M: The clearly supported J and M letterforms in left-to-right order with worn serif-like contour geometry and no decorative outer invention; oxidized reconstruction.
AI-assisted oxidized reconstruction

The clearly supported J and M letterforms are preserved in left-to-right order with worn serif-like contour geometry and no decorative outer invention.

Low confidence comparison reconstruction.

Mark variant 9

J M: J and M arranged left to right inside a simple horizontal rectangular cartouche; line reconstruction.
Line reconstruction
J M: J and M arranged left to right inside a simple horizontal rectangular cartouche; oxidized reconstruction.
AI-assisted oxidized reconstruction

J and M arranged left to right inside a simple horizontal rectangular cartouche.

Low confidence comparison reconstruction.

Mark variant 10

J M: J M arranged left to right inside one compact horizontal rectangular cartouche; line reconstruction.
Line reconstruction
J M: J M arranged left to right inside one compact horizontal rectangular cartouche; oxidized reconstruction.
AI-assisted oxidized reconstruction

J M arranged left to right inside one compact horizontal rectangular cartouche.

Low confidence comparison reconstruction.

Sources and comparison limits

Maker labels and date or location statements follow the cited source records. Similar names across source collections have not been merged. Compare the photographed mark and the complete object before relying on a resemblance.

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