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| Transformers #27 | ||
| Marvel Comics, 4/87 | ||
| Bob Budiansky story | 1st appearance of Ratbat & Trypticon. | |
| Don Perlin, Ian Akin & Brian Garvey art | Grimlock becomes leader of the Autobots. | |
| Herb Trimpe cover | ||
| Books | CGC Label | CGC Total | Avg. Grade | 10 | 9.9 | 9.8 | 9.6 | 9.4 | 9.2 | 9.0 | 8.5 | 8.0 | 7.5 | 7.0 | 6.5 | 6.0 | 5.5 | 5.0 | 4.5 | 4.0 | 3.5 | 3.0 | 2.5 | 2.0 | 1.8 | 1.5 | 1.0 | 0.5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 BOOK | Universal | 183 | 9.47 | 0 0.00% | 0 0.00% | 72 39.3% | 55 69% | 24 83% | 17 92% | 3 93% | 5 96% | 2 97% | 0 97% | 3 99% | 0 99% | 1 99% | 0 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 5 | 9.14 | 0 0.00% | 0 0.00% | 2 40.0% | 1 60% | 0 60% | 0 60% | 0 60% | 1 80% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Transformers #27 (1987, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 39% 72 9.8 | 30% 55 9.6 | 13% 24 9.4 | 9% 17 9.2 | 2% 3 9.0 | 3% 5 8.5 | 1% 2 8.0 | 0% 0 7.5 | 2% 3 7.0 | 0% 0 6.5 | 1% 1 6.0 | 0% 0 5.5 | 1% 1 5.0 | 0% 0 4.5 | 0% 0 4.0 | 0% 0 3.5 | 0% 0 3.0 | 0% 0 2.5 | 0% 0 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||