Grade Matrix
Graded
PSA 6
-
Grade 7 guide
-
Grade 8 guide
-
Grade 9 guide
$19
PSA 10
$25
PSA 10: Last PSA 10 sale $25.00 on Nov 10, 2024 · checked Oct 26, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
-
CGC 9
-
CGC 10
$17
CGC P10
-
Availability
Availabilityi
6/10G: —
Graded: insufficient data · Sales per year: ~210 sales/yr · Raw recent sales: 60 · Grade 9 recent sales: 2 · PSA 10 recent sales: 2 · Graded copies: 9
TCGplayer Price History
Reverse HolofoilProduct 121015Fetched Oct 23, 3:45 AM
Weekly market
$0.51
week ending Oct 22
Weekly avg sale
$0.48
week ending Oct 22
Units sold (week)
2
week ending Oct 22
Card Value FAQ
How much is a PSA 10 Shellos (Steam Siege #28) worth?
A PSA 10 Shellos (Steam Siege #28) is currently shown at $25.00. GemDelta labels this as the latest stored PSA 10 sale, which is older than the sales window; no sales were found inside that window.
What is the Reverse Holo version of Shellos (Steam Siege #28) worth?
The Reverse Holo version of Shellos (Steam Siege #28) is shown at $0.52 market price. That value is for this stored card variant, not the base printing.
PSA 10 past sales
| Date | Listing | Sale |
|---|---|---|
| Nov 10, 2024 | PSA 10 Shellos Reverse Holo XY Steam Siege (POP 2) Pokemon BGS CGC 28/114 28/114 | $25.00 |
| Oct 6, 2024 | PSA 10 Shellos Reverse Holo XY Steam Siege (POP 2) Pokemon BGS CGC 28/114 28/114 | $30.00 |