Strong Buy
the Common Squirtle from 151 is one of the strongest PSA grading opportunities in the set. Raw copies trade around $0.25 while PSA 10s sell for about $343.59, a 281% Return on Grading. The upside only holds if the copy grades a 10, so inspect edges and surface first.
Among the 78 cards in 151 with PSA 10 sale data, Squirtle ranks 2nd for Return on Grading and 12th by PSA 10 price. Of the 7 Common cards with PSA 10 sales, it is 2nd for Return on Grading. The median PSA 10 in this set sells for $131.00. 19 of the 78 clear a 100% Return on Grading.
