Good afternoon my name is***** you for your question. The Norblin & Warszawa Co. began using the word Galv, instead of the earlier Plaque, after 1872. Can you send images of the mark and one of the trays if they are all similar?
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Hi Melanie, the marks indicate that the tray was produced in Warsaw Poland 1901 to 1906 and have the Russian two headed Eagle. The language below is Arabic, which is unusual. Are they 4" x 5" that seems rather small? Normally the trays are much larger.