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In 1904 Electro Chemical Engraving exhibited at the Universal Exposition - Louisiana

Purchase Exposition in St. Louis, Missouri.

The 1906

Automotive Industries

directory has this listing:

―

The Electro-Chemical

Engraving Company, 450-458 Nineteenth street, Brooklyn, N. Y. is offering to the

automobile trade a line of name plates

etched in brass for attachment to cars

and all sorts of machine tools. These

are made in any desired style and size

and are artistically designed. The

wording appears in raised letters on a

dead black sunk background. Holes

are provided in the ends of the plates for attaching to the machinery. The design is

etched shallow or deep, as preferred, but the company recommends deep etching, since

it is more enduring. The makers, who received the highest award for metal name -plates

at the St. Louis Exposition, also manufacture clock and meter dials, scales, metal signs,

etc.

‖

The 1906

American Trade Directory

also lists the firm in Brooklyn

In 1913 Nelson Jacobus was listed in the U. S. Government

Alien Custodian Report

under

―

Dealings with the enemy

‖

.

The 1918 and 1919 U. S. Government

Alien Custodian Report

under

―

Dealings with the

enemy

‖

has

―

Electro-Chemical Engraving Co. Etching metal name plates, dials, etc.

Address: Brooklyn, N. Y. Capital stock: $25,000 common; $28,800 preferred. Number of

directors: 5. Enemy interest: 20 per cent common. Report number: 19860. Trust number:

9527. Thomas F. Crean, 29 Broadway, New York City.

‖

The 1919 United States Congress Serial Set reported

―

Electro-Chemical Engraving Co.

(Etching metal name plates, dials, etc.) Address: 450-458 Nineteenth Street, Brooklyn, N.

Y. Authorized capital: $35,000 common, $36,000 preferred. Issued capital: $25,000

common, $28,800 preferred. Enemy held: $6,250 common. Counsel: Lyttleton Fox, 120

Broadway, New York, March 24, 1919. Counsel fee: None paid.

‖

In a 1920 directory L. S. Southwick is listed as the Production Manager of Electro

Chemical Engraving Co., producing airplane dials, compass dials, and range finder

plates.

The 1921

EMF Electrical Yearbook

has this

listing:

―

The Electro-Chemical Engraving

Company, Brooklyn, N. Y. Manufacturer of

electrical instrument dials and name plates for

electrical machinery. Business established

1900. President and treasurer, Frederick E.