1975 SSPC Frank Duffy #521
1975
See all Frank Duffy cards & valuesCommon
$0.99est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Set
1975 SSPCCard number
#521
Year
1975
Price by month
Average price of the 1975 SSPC Frank Duffy #521 each month, from 1 recorded price reading. Prices are re-checked regularly; a month's average counts each day from that month's first reading at the price that held that day.
Recorded high
$0.99
Recorded low
$0.99
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $0.99 | — |
Frank Duffy prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $0.99 | Buy on eBay ↗ |
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Affiliate — we may earn a commission1975 SSPC Frank Duffy #521 value & prices
The 1975 SSPC Frank Duffy #521 is a Baseball card released in 1975. Ungraded copies carry a market value of about $0.99.
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