Biographical dictionary of medallists: coin, gem, and seal-engravers, mint-masters, &c., ancient and modern, with references to their works B. C. 500-A. D. 1900; compiled by L. Forrer ...

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JACOBSON, SALOMON ARON (B.D.M., Vol. III, p. 46). By this
Engraver are also medals of Dr Heinrich Callison, I805, and the
British Museum owns an Intaglio of Endymion by him (Cat.
n~ 764). The gem is a copy of a statue by Thorwaldsen at
Copenhagen. In the Eidlitz collection is a medal by him of
Frederick VI. of Denmark, I817; AR. 55, signed: S. JACOBSON.
Jacobson was a native of Hamburg, but he worked chiefly in
Copenhagen.
JACOBY, MEINHARD (B.D.M., Vol. IIT, p. 46). At the Berlin
Kunst-Ausstellung, I907, this artist exhibited a Christening Medal,
and several Firemen's Badges.
JACOT-GUILLARMOD FR.RES (B.D.M., Vol. III, I907, p. 47)..
To commemorate the Calvin Jubilee at Geneva, I909, this firm
issued a series of medals and plaquettes of the famous Reformer.
By them is also the Presentation medal to Burkhard Reber of the
Geneva Cremation Society.
Also: 1909, 35oth. Anniversary of institutions founded by
Calvin, SE 25X36; 1912, Second centenary of Jean-Jacques
Rousseau, LE 45 X 35. both signed: A.J.G. (R.J. Eidlitz).
JAEGER, CLAUS (Germ.). Mint-master at Ltibeck, 1617-I618.
JAEGERS, ALBERT (Germ.). Contemporary Sculptor and Medallist, born in Elberfeld, Germany, in I868. Educated in Cincinnati,
Ohio; practically self-taught; came to New York City in I890;
won several competitions inaugurated by the National Sculpture
Society; modelled the State figure " Arkansas" and the portrait
statue "Pestalozzi" for the St. Louis Exposition, executed commissions for the Fine Arts Building in St. Louis and the Custom
House in New York, and commissioned by the Government to
erect the Baron von Steuben Monument in Washington, which
commission was won in competition.
He exhibited the following works at the New York International
Medallic Exhibition, held in March, 9I0:Portrait; -- Model for an original research medal (Catalogue of
the N. Y. Medallic Exhibition).
JAENNISCH, JOBST JAKOB (Germ.). Mint-master at Celle
(Brunswick), 687-1705; privy-mark, III or JJJ. A Pattern Ducat
of Duke George William 1690 bears these initials.JJ.J and also
Thalers and subsidiary currency, of varied years.
JAHN, C. (Dutch). Cut the dies for the obverse and reverse of a
medal commemorating an Industrial Exhibition in I88, and for the
reverse of a medal commemorating the explorations of Baron Nils
Adolf Erik Nordenskiold, which w-as struck for the Gothenburg
Society of Science.