There shouldn't be any other dates stamped on your half dollar. Only the date 1969.
SS stamped on jewelry means Sterling Silver. Some other common stamps for Sterling Silver are "925" "S/S" "ster" "sterling" and "sterling silver" SP stamped means "Silver Plated" - No Real Value because it is only a coating that is put over a less valuable metal such as Brass or Copper.GP stamped means "Gold Plated" (same as above)Common stamps found on Gold are 10k, 14k and 18k (they could also be stamped with a three digit number: 416 (same as 10k), 585 (same as 14k) and 750 (same as 18k)
If the pieces are not clearly marked Sterling, they are most likely silver plated. Silver plated items have a much lower value than sterling ones. If it is silver plated, the pitcher might be worth $40-50. If it is sterling, it would be worth at least ten times that.
No it's not, incomplete edge lettering is common on the Sacagawea & Presidential dollar coins.
Cloissone pins are stamped out of a sheet of copper paper. The stamping results in recessed areas that are filled with enamel powder. Then the pin is high fired at 800-900 degrees. After cooling the surface is ground down to a smooth finish. After that the copper is plated. Other types of pins are stamped out of steel, brass, or aluminum.
HGEA means heavy gold electroplated alloy, in other words a cheap fake ring. A ring stamped with this hallmark is usually made of an inexpensive base metal like copper and then plated with a very thin skin of gold. The amount of gold used to plate the ring is almost nonexistent and therefore usually worthless.
If it has 3 clearly repunched mintmark images, it will be worth about $30 in circulated condition.
Yes, one just has to be stronger than the other in order to provide a wearing effect on the other and get a proper seal and such. for instance you would never use chrome-plated rings in chrome-plated cylinders.
18k is supposed to mean that the item is 18 karat gold. 18 karat gold is supposed to be .750 pure. 75% pure gold and 25% some other metal. Unfortunately this is not often the case. 18k may be but likely is not .750 pure. There is a legal leeway in 18k meaning, if the item is stamped 18k it may be .745 pure. Close enough to legally be stamped as 18k. But not actually. 18KP is supposed to mean 18 karat plumb. When an item is plumb, it is level or even. In this instance 18 KP would mean exactly .750 pure. Not .745 or .748 but exactly .750. 18kpg is a trick by whoever stamped it. It means that the item is 18k gold plated. Why they stamp it 18kpg is to hopefully trick the person into thinking that it is 18k plumb gold. 18kpg is not a legitimate stamp because it changes the p from plumb to gold plated. The gold industry like all things dealing with money is full of shysters and cons and it is truly a (let the buyer beware). Between grams and pennyweight and troy oz vs. avoirdupois oz. and using the decimal system vs the karat system it is further convoluted by the initials used, rgf, gf, plumb, plated and switching letters such as in 18kpg to mean 18 karat gold instead of plated gold. No one can know if something stamped 18 k plated is actually 18k or 10k or even gold to begin with because no one will test the item to determine quality of gold plating.
Either platinum or gold can be plated to match the other
It means it it gold plated with 14 karat gold . It is plated allot of the time on sterling silver or other types of metal .
FB Rodgers was a manufacturer of silver plated products and did not produce any sterling. To tell if a piece of silver is sterling or plate, the word sterling or .925 or 925/1000 must be stamped somewhere on the piece. If it is not, it is plate or some other material.
No, I have never seen a 1943 Florin stamped into a bottle cap, but I have seen plenty of other coins stamped into bottle caps.