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I was going thru my collection and came across this stamped cover:



The notes on the reverse are from one of the previous owners. Personally, I would suspect the stamp was produced long before it was used on this envelope.
Was able to find this info online:
"Mr. Laucks was married May 2, 1900, to
Emma Jane Strack, daughter of Charles A.
Strack, one of the most prominent furniture
dealers and undertakers of York, whose sketch
will be found elsewhere. One child has
blessed this union, Charles Israel."
"History of York County, Pennsylvania. John Gibson, Historical Editor.
Chicago: F. A. Battey Publishing Co., 1886.
_______________________________________________
Part II, Biographical Sketches, York Borough, Pg 50
C. A. STRACK, furniture dealer and undertaker, is a native of York, Penn., born
March 4, 1843, son of Charles A. and Caroline (Funk) Strack. The father was a
native of Saxony, Germany, born in 1810, and the mother was born in 1806. In
1838 the ancestors of our subject emigrated from Germany to America and settled
in Baltimore, Md., and in 1839 removed to York, where subject's father died in
1855. At the age of twelve years our subject began learning the cabinet-maker's
trade under an elder brother, and in this capacity continued five years, after
which he became general manager of the furniture and undertaking business. Mr.
Strack's father was one of the early furniture dealers of York. In 1878 subject
purchased his mother's interest in the business, and since that time has been
doing business for himself. He was married, in 1865, to Mary M. Heckert, a
native of York. Six children were born to this union: Carrie S., Emma J.,
Charles P., Rebecca B., Samuel H. and Fannie M. Mr. Strack is a Democrat, and
has been a member of the borough school board and identified with the numerous
associations of York. He and his wife are members of the Trinity German
Reformed Church."