Identification assistance please

[STEVE LAPIN]

I have three small teaspoons and can't identify a maker or country of origin. I appreciate any assistance.


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[blakstone]

Johann Heinrich Holstein (ca. 1775-1828) of Osnabrück, Lower Saxony, Germany. He was apprenticed 1790-1795 to Ernst August Körner and became a citizen & master in 1800. His widow, Agnesa Dorothea Sattinger (ca. 1782-1860) continued the business until at least 1845, and by 1855 it had been assumed by their son, Eberhard Friedrich Holstein (b. 1811; Master 1837).

[STEVE LAPIN]

Thank you for your assistance. Could you recomend the resource you used to find this and where I might find a copy for my library?
Thanks,
Steve