If you are a reader of my Silver Ingots Blog, you already know that all U.S. Assay Office New York silver ingots are extremely rare. Most recently I was able to add two of the three in the first picture below to my collection.
The 40 oz class U.S. Assay Office New York silver ingots that I have come across in my research, represent the widest range of dates in any of the three common sizes; 40 oz, 100 oz and 1,000 oz. In the 40 oz class, I have come across the following dates; 1908, 1928, 1946, 1949, 1952, 1954 and 1957. The examples below are dated 1928, 1949 and 1957.
As with most U.S. Assay Office New York silver ingots, the government control markings are complete with dated hallmark, fineness, weight, lot number and serial number. The lot numbers are visible in the photo below being on the leading edge; the serial numbers are on the top edge.
My collection of U.S. Assay Office New York silver ingots pictured together below. The two small ingots are by far the most rare of all and the one on the far right dated 1892, is the oldest known date on any U.S Government issued silver ingot.