In the last post about FAKES, I used the page below from the May 1972 Numismatist. This week Fred H (no, not that Fred H, a different one) contacted me with a photo of the actual ingot used in the column article below. The Mint Of The United States At San Francisco silver ingot #858, Type I oval hallmark, small font with curved stem nines in 999.75 fineness, is presently in Fred H's collection.
If you read the Featuring Fakes column in the May 1972 Numismatist, you are left with the impression that the ingots pictured are representative examples of the author's claim that "Mint Of The United States At San Francisco bars also are counterfeited", and would be fakes.
As far as #858, I would attest to its authenticity based on close examination of two high resolution photographs in my possession. Numerically, it is just before ingots on a receipt in my collection for the same type and style, #982 to #1018. Close examination of hallmark along with unique numerical features like the specific shape of the seven and small curled tail of the five match ingots on my receipt pictured below. Based on the date of my receipt, December 28, 1942, I would date #858 from mid to late 1942.
No question; #858 is no fake.