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 Replies: 9 / Views: 1,188 |
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New Member
United States
1 Posts |
Hi, I have a Philippine gold coin that is significantly larger than it should be. Could you guys help me understand why it's so big? Take a look at the picture link I've added. On the right side is the Philippine coin approximately quarter ounce of gold and on the left side is 1/10th of pure 99.99 gold.  Philipine Gold coin is 0.2879 ounce AGW 90% pure. Coin description: 'New Society Anniversary' 1000 P. year 1975 By comparing the 2 coins, it seems you can fit five 1/10th oz of gold into the Philippine coin. Why is the coin so much bigger than it should be. Please let me know. |
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Valued Member
Canada
402 Posts |
Does the foil come off the (chocolate) coin
Seriously, I am totally confused about the differential ....But I did find this information....if your coin says 1000Psio
Brief Historical Notes on The Philippines
According to the CIA Website:
The Philippine Islands became a Spanish colony during the 16th century; they were ceded to the US in 1898 following the Spanish-American War. In 1935 the Philippines became a self-governing commonwealth. Manuel QUEZON was elected president and was tasked with preparing the country for independence after a 10-year transition. In 1942 the islands fell under Japanese occupation during World War II, and US forces and Filipinos fought together during 1944-45 to regain control. On 4 July 1946 the Republic of the Philippines attained its independence. The 20-year rule of Ferdinand MARCOS ended in 1986, when a "people power" movement in Manila ("EDSA 1") forced him into exile and installed Corazon AQUINO as president. Her presidency was hampered by several coup attempts, which prevented a return to full political stability and economic development. Fidel RAMOS was elected president in 1992 and his administration was marked by greater stability and progress on economic reforms. In 1992, the US closed its last military bases on the islands. Joseph ESTRADA was elected president in 1998, but was succeeded by his vice-president, Gloria MACAPAGAL-ARROYO, in January 2001 after ESTRADA's stormy impeachment trial on corruption charges broke down and another "people power" movement ("EDSA 2") demanded his resignation. MACAPAGAL-ARROYO was elected to a six-year term as president in May 2004. The Philippine Government faces threats from three terrorist groups on the US Government's Foreign Terrorist Organization list, but in 2006 and 2007 scored some major successes in capturing or killing key wanted terrorists. Decades of Muslim insurgency in the southern Philippines have led to a peace accord with one group and on-again/off-again peace talks with another.
Specifications
Denomination Diameter Weight Alloy AGW
1000 Piso 26 9.95 0.900 0.2879
1500 Piso 33 20.55 0.900 0.5947
2500 Piso 33 14.57 0.500 0.2342
5000 Piso 51 68.47 0.900 1.9893
Key
Diameter = Approximate Diameter in millimetres.
Weight = Weight in grams.
Alloy = Fineness of gold.
AGW = Actual fine gold weight in troy ounces.
rices & Availability
Please contact us prior to ordering for current prices and availability.
Date Denomination Description Mintage Grade Availability Price £ Price $
1975 1000 Piso 3rd Anniversary of the New Society 23,000 Uncirculated Yes £380 $600
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Rest in Peace
United States
2668 Posts |
Maybe 2 1/2. Welcome!  Better pics, maybe?  |
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Rest in Peace
United States
2668 Posts |
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Pillar of the Community
2145 Posts |
What about the thickness of each coin?
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Bedrock of the Community
Australia
21786 Posts |
Would like to see a picture of the slab label of the larger coin, and to measure the coin inside the slab with a scale.
Compare to the info that cdngmt has posted.
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CCF Master Historian of USA Commemoratives
 United States
12255 Posts |
First, I can essentially guarantee that, if the coin is genuine, it is definitely not "bigger than it should be." Genuine gold coins are produced to tight specifications and the coin in question is exactly the size it should be based on the Philippines coinage specifications for size (diameter, thickness) and weight. The second thing to understand is that the Canadian coin at 0.999 fine gold will be heaver than a 0.900 fine gold coin of the same size. Gold is heavier than the alloy metals and so is heavier when the dimensions are the same. Next, the thickness of each coin needs to be considered. The 1982 Canadian 1/10th ounce gold coin has a thickness of 1.22 mm; the Philippines coin has a thickness of 1.5 mm. If the thickness was the same between the two coins, the 1000 Pisos coin would have a larger diameter. The fact that it is thicker means it will have a diameter that gives the visual illusion of being too small when making a comparison to a thinner coin. Mints routinely make low-weight coins as thin as they can to allow their diameters to be larger and give the impression of being a bigger coin. In the end, all is correct with the two coins you have presented. As they say, "Nothing to see here. Move on!"  Hope all that helps! Collecting history one coin or medal at a time! (c) commems. All rights reserved.
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Moderator
United States
187702 Posts |
to the Community! |
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Pillar of the Community
 United States
7933 Posts |
Because that's the way it's supposed to be? 26 mm for the Philippine coin: https://en.numista.com/catalogue/pieces15892.html16 mm for a Canada maple leaf 1/10 oz coin. https://www.providentmetals.com/kno...le-leaf.htmlAT the same thickness and composition, a 26 mm coin would weigh 2.6 times the weight of a 16 mm coin, pretty close to the difference between 1/10 oz and 1/4 oz. The lower gold content of the larger coin means it will be proportionally heavier than if it were the same composition. If either one is the wrong diameter (but they are not according to NGC), send it back for a refund. Edited by tdziemia
01/31/2021 10:13 am
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Pillar of the Community
United States
7933 Posts |
As best I can tell, the size of the large coin is OK.
It would be easier to do this if the coins were photographed straight on (rather than at an angle), but we can still take the ratio of diameters of the two coins, and compare to the correct value of 1.625 (26 mm/16 mm). We can also take the ratio of the diameter of the larger coin to the width of the slab and compare it to the correct value of 0.433 (26 mm/60 mm).
When I measure (ruler accurate to 1 mm) both coins on my computer screen along the longer axis (NW-SE), I get a ratio of about 1.6, and if I measure along the shorter axis (SW-NE), I get 1.5.
If I measure the ratio of the diameter of the coin to the width of the slab, I get 0.47.
Given the inaccuracies in measurement, both are reasonably close (within 10%) of what we'd expect.
Probably the OP has done the measurements the more accurate way, and reached the same conclusion.
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Replies: 9 / Views: 1,188 |
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Posted 01/28/2021 7:52 pm
