Professor's Research

SWSH Black Star Promos · #SWSH178/307 · Promo · 2019

$0.57

Market price ▼ 16.2% (30d)

Prices as of Aug 22, 2026

with Pokemon Go Code Unlimited

SupporterArt · Yusuke Kozaki

58.3×PSA 10 vs raw

-77%off ATH $5.13 · Aug 2022

Market data

Printings & price history

with Pokemon Go Code▼ 6.6% 7d$0.57

Low $0.40Mid $0.70

Loading chart…

Live listings

Buy it now on eBay

Loading live listings…

Live from eBay · affiliate links support CardPrice · see recent sold results →

Shop live eBay listings →Recent eBay sold results

Graded market

Graded values

updated 2026-08-21

Grade 6 est.$0.94

Grade 5 est.$0.79

Grade 4 est.$0.65

Grade 3 est.$0.54

Grade 2 est.$0.45

Grade 1 est.$0.38

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

Grade 9.5 price history$2.00

Grade 9.5 chart is building — graded values are tracked nightly, a new point appears each day.

How much is Professor's Research #SWSH178/307 worth?

Professor's Research #SWSH178/307 is a Promo card from SWSH Black Star Promos (2019) — today it trades at roughly $0.57 ungraded. Across the 2 printings we track, copies run anywhere from $0.13 to $19.98 depending on the version you're holding.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.

Collecting SWSH Black Star Promos?Full master set guide — every card, chase list, and completion cost→

Other printings of Professor's Research 16

Professor's Research

Black Bolt · #85/86

Professor's Research

Black Bolt (Japanese) · #84/86

Professor's Research

Black Bolt (Japanese) · #84/86

Professor's Research

Journey Together · #155/159

Professor's Research

ex Starter Set Marnie's Morpeko & Grimmsnarl ex (Japanese) · #17/19

Professor's Research

ex Starter Set Steven's Beldum & Metagross ex (Japanese) · #16/18

Professor's Research

Battle Partners Deck Build Box (Japanese) · #35/45

Professor's Research

Prismatic Evolutions · #122/131

Professor's Research

Prismatic Evolutions · #123/131

Professor's Research

Prismatic Evolutions · #124/131

Professor's Research

Prismatic Evolutions · #125/131

Professor's Research

Generations Start Decks (Japanese) · #162/175

Professor's Research

Generations Start Decks (Japanese) · #163/175

Professor's Research

Generations Start Decks (Japanese) · #164/175

Professor's Research

Generations Start Decks (Japanese) · #165/175

Professor's Research

Generations Start Decks (Japanese) · #166/175