Sunday, March 30, 2014

Silver Ingots Blog Tops 10,000 Pageviews

Just over one year and Silver Ingots Blog tops 10,000 pageviews! I continue to be thrilled and grateful that my blog about silver ingots has been so well received. Thanks again to everyone that subscribes or follows for making this such a success. Information exchange continues to improve and awareness widened of silver ingots in general and in particular, those from the Mint Of The United States At San Francisco.
We are about 70% of the way through the alphabetic review of my 5 oz class hallmark collection and I am beginning to more frequently cover specific components of my US Government Mint and Assay collection.

A taste of things still to come:

United States Assay Office At San Francisco

United States Assay Office New York

Silver Ingots

Friday, March 28, 2014

The "S" Box Part II

Getting back to the "S" box with some of the most rare and extremely collectible "S" examples. SSCO represents one of the oldest looking ingots in the box with nothing more than the obverse stamping to identify this one of a kind ingot.

States Smelting & Refining from Lima, Ohio; another extremely rare example. The only two of these that I have ever seen are in my collection.

Continuing with another extremely rare ingot, Swest Incorporated from Dallas, Texas. Once again, the only one I have ever seen.

And finally for this post, San Diego Refining Company. The first example is the only one in this fairly crude picture-frame casting that I have ever seen. The second example is just slightly more common. More modern looking examples in the 10 oz class are simple rectangular ingots with balance scales on the obverse and S.D. Refining Co. stamped on the reverse.

More to come from the "S" box and of course I'll be jumping back to Mint Of The United States At San Francisco ingots as well.

Silver Ingots

Sunday, March 23, 2014

Mint Of The United States At San Francisco Type II Ingots Part V

Working on some light box photography this afternoon and the toning on the example below warrants its own post. Ingots in my collection cover a range of coloring from bright silver towards chocolate brown or dark gray and every tone in between. No telling what this particular ingot was exposed to over the years but the rich gold tones with underlying rainbow coloring make it one of a kind. It is reminiscent of rainbow coloring one can find on Morgan and other silver dollars.

This is a Type II, weighing 6.60 ozs, with one on the nicest struck hallmarks I have seen to add to its overall beauty. The ingot has no markings on the reverse.  

Silver Ingots

Thursday, March 20, 2014

Mint Of The United States At San Francisco Round Hallmark Ingots Part I

To date, in a number of posts, we have looked at ingots with the Mint Of The United States At San Francisco Type I oval hallmark, 

and the Mint Of The United States At San Francisco Type II oval hallmark.

In this post we will begin to look at ingots with the Mint Of The United States At San Francisco round dated hallmark, introduced in 1956. This hallmark not only appears independently on the obverse as shown below, but also as a secondary hallmark on the reverse of a number of Type II cast ingots. (The use of this hallmark on the reverse helps with chronological organization as demonstrated on previously posted tables.) 

The round dated hallmark was used from 1956 through 1960 when ingot production ended entirely at the San Francisco Mint. It has been thought that introduction of the round dated hallmark ended use of the Type II oval hallmark but recently discovered receipts from 1958 that include both round and oval hallmark ingots proves otherwise. 

The only examples that I have seen in the 5 oz class ingots with this round hallmark are all dated 1959.

More to come on the round dated hallmark ingots in future posts and as always, if anyone has anything to add, please let me know.

Silver Ingots

Sunday, March 9, 2014

Mint Of The United States At San Francisco Type II Ingots Part IV

In the last Mint Of The United States At San Francisco Type II ingots post we looked at a listing of Type II ingots; this post will look specifically at the sheared plate examples that I listed fist in the registry. As I previously wrote, I believe these predate the cast ingots due to a stamped date of 1952 on the obverse of the #1 example, and so far, nothing earlier on the cast ingots than round 1956 hallmarks on the reverse of a few.

Sequential organization of sheared plate examples that I have found to date also results in chronological order of all known dates. Twenty examples have been identified to date ranging from #1 to #1802. The #1 ingot is reverse dated 1952; #464 is reverse dated 1954; and #1738 is reverse dated 1955. Having copy of the original receipt for #1767 dated April 29, 1955 confirms that these reverse stampings are in fact dates and not some other mark.

I have one sheared plate example in hand and have examined numerous other photographs, all appear to have at least one shear cut edge. On the example below, the right edge is clearly sheared while the left is less obvious. The top edge and bottom edge are original to production. 

On this example and three others I have seen in photographs, there is an reverse Mint Of The United States At San Francisco Type hallmark of much larger scale. All are cut through the middle confirming that the original plates that these examples were sheared from were indeed longer.

The reverse Mint Of The United States At San Francisco hallmark appears to be similar to the Type II feather pattern. 

This example also bears a light reversed impression from what appears to be the result of another plate having been pressed against it with great force. 

As always, if anyone has anything to add including additional Type II sheared plate examples, please let me know.

Silver Ingots


Saturday, March 1, 2014

Mint Of The United States At San Francisco Type II Ingots Part III

After presenting the Type II registry in a previous post and subsequently studying it, I went back to as many original sources as possible and focused on the written descriptions more so than the photographs for any information I might be able to add. This exercise resulted in quite a few updates to the list as I was able to discover lot numbers that I had not picked up on previously as well as three additional examples that are listed with reverse date stamping.

The sheared plate examples track nicely through the three known dates by numerical sequence organization. The fineness of .99975 is consistent throughout. None include lot numbering and the extra numbers on the obverse remain a mystery; they are listed in the registry as "x mk".

In the cast examples, I was able to find quite a few lot numbers within the written descriptions that I have included in the updated list. While the fineness of .99975 remains constant throughout the cast group above, I have yet to figure out the conflict between lot numbers and numerical sequencing. typically lot numbers are together in groups but here we see individual lots spread throughout. Lot 164 is constant through the examples known to contain the reverse round 1956 hallmark, but is also on the very first example, #155. Lots 1, 2 and 178 are spread in between.

I am undertaking some new endeavors, reaching out for information that I hope continues to progress my work on accurate dating and chronological organization of Mint Of The United States At San Francisco ingots. Much more to come.

Silver Ingots