Whitman Expo
His free weekly newsletter offers insights on the coin and metals markets, and consumer education.
Thank you to our sponsors!
Go check them out!
The upper serif of the S mintmark is thicker/heavier than the lower serif. Inverted S mintmarks—a byproduct of the hand-made nature of working dies in this era—are known among several U.S. coin denominations and types, including Lincoln cents, Mercury dimes, and Standing Liberty and Washington quarters. This Philippines version from 1918 is a popular and valuable die variety.
Reverse Description
An eagle is portrayed in the center atop an American shield with 13 stars. UNITED STATES OF AMERICA is written around the periphery with the date at the bottom.
Catalog Information
GSID:
373177
Designer:
Melico Figueroa
Fineness:
0.75
Weight (gr):
10 gr
Weight (oz):
0.353 oz
Precious Metal Weight:
0.2411 oz
Strike Type:
Business
Diameter:
27
Coin Shape:
Round
Edge:
Reeded
Variety:
U.S. Philippines, S over Inverted S
Variety 2:
Allen-14.07a, FS-501
Coin Date:
1918-S
Denomination:
50c
Designation:
MS
Mint Location:
San Francisco
Mint Mark:
S
Mintage:
2,202,000
Coinage Type:
U.S. Philippines Coinage
Coinage Years:
1907-1921
Composition:
Silver
PCGS #:
509685
Send Catalog Feedback
To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for 1918-S 50c U.S. Philippines, S over Inverted S, Allen-14.07a, FS-501 MS
Body: Referring page: http://livetest.greysheet.com/prices/item/1918-s-fifty-centavos-50c-us-philippines-coinage-fs-501/gsid/373177 GSID: 373177 Title: 1918-S 50c U.S. Philippines, S over Inverted S, Allen-14.07a, FS-501 MS
Subscribe to View
View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.
Coin Value History
1918-S 50c U.S. Philippines, S over Inverted S, Allen-14.07a, FS-501 MS
Value By Grade
1918-S 50c U.S. Philippines, S over Inverted S, Allen-14.07a, FS-501 MS
CPG (retail) values
Currency
Grade Range
Sort by
Pricing
Values
Greysheet & CPG® Values
| Grade | CPG Value (Retail) | Greysheet Price (Wholesale) |
|---|---|---|
| MS66 | $5,500 | $1,234 |
| MS65 | $3,000 | $1,234 |
| MS64 | $1,234 | $1,234 |
| MS63 | $1,234 | $1,234 |
| MS62 | $1,234 | $1,234 |
| MS61 | $1,234 | $1,234 |
| MS60 | $1,234 | $1,234 |
| AU58 | $1,234 | $1,234 |
| AU55 | $1,234 | $1,234 |
| AU53 | $1,234 | $1,234 |
| AU50 | $1,234 | $1,234 |
| XF45 | $1,234 | $1,234 |
| XF40 | $1,234 | $1,234 |
| VF35 | $1,234 | $1,234 |
| VF30 | $1,234 | $1,234 |
| VF25 | $1,234 | $1,234 |
| VF20 | $1,234 | $1,234 |
| F15 | $1,234 | $1,234 |
| F12 | $1,234 | $1,234 |
U.S. Philippines 50c 1903-1905 MS [Type]
Worth: $26 – $360
1903 50c U.S. Philippines MS
Worth: $26 – $360
1903-S 50c U.S. Philippines MS
Worth: $30,000 – $50,000
1904 50c U.S. Philippines MS
Worth: $36 – $1,700
1904-S 50c U.S. Philippines MS
Worth: $32 – $3,000
1905-S 50c U.S. Philippines MS
Worth: $35 – $3,750
U.S. Philippines 50c 1907-1921 MS [Type]
Worth: $23 – $3,000
1907 50c U.S. Philippines MS
Worth: $33 – $2,200
1907-S 50c U.S. Philippines MS
Worth: $33 – $3,600
1908-S 50c U.S. Philippines MS
Worth: $31 – $4,000
1909-S 50c U.S. Philippines MS
Worth: $31 – $2,600
1917-S 50c U.S. Philippines MS
Worth: $23 – $6,000
1918-S 50c U.S. Philippines MS
Worth: $31 – $3,600
1919-S 50c U.S. Philippines MS
Worth: $23 – $3,000
1920-(M) 50c U.S. Philippines MS
Worth: $23 – $2,050
PHILIPPINES. 50 Centavos, 1918-S. San Francisco Mint. PCGS MS-61.
$1,342
1918-S 50C Philippines 50 Centavos, Allen-14.07a Inverted S AU58 PCGS. PCGS Population: (6/9 and 0/0+)....
$240
1918-S 50C Philippines 50 Centavos, Inverted S, KM-171, Allen-14.07a, MS66 PCGS. ...
$3,840
Greysheet News
Consumer Advocate Mike Fuljenz Wins NLG's Newsletter Award
9/15/2026
Incredible Rarities Shatter Records Amid Furious Bidding at Stack's Bowers Galleries' Summer 2026 Global Showcase Rarities Night Session
Stack's Bowers Galleries, one of the world's largest and most prestigious rare coin auction houses, is proud to announce record breaking results from the Rarities Night session of its annual Summer Global Showcase Auction.
9/15/2026
Five U.S. Coins Bring 7 Figures in $67 Million+ Heritage ANA Auctions
Scandinavian gold rarities also command exceptional results.
9/11/2026
Events
Heritage Auctions: US Coins Tuesday & Wednesday Select Auction
Location: Heritage Auctions
Wednesday, July 1, 2026
Heritage Auctions: World & Ancient Coins Wednesday & Thursday Select Auction
Location: Heritage Auctions
Thursday, July 2, 2026
