11 printings of Sorcerous Spyglass
They range from $0.19 to $0.48 — a 3× difference for a card with the same name. The set code and collector number printed along the bottom edge are what tell them apart.
| Ixalan Promos | PXLN 248s | — |
| Throne of Eldraine Promos | PELD 233s | — |
| Secret Lair Drop | SLD 693 | — |
| Ixalan Promos | PXLN 248p | $0.48 |
| Throne of Eldraine Promos | PELD 233p | $0.33 |
| Ixalan | XLN 248 | $0.30 |
| Time Spiral Remastered | TSR 401 | $0.29 |
| Throne of Eldraine | ELD 233 | $0.22 |
| Throne of Eldraine | ELD 384 | $0.20 |
| The Lost Caverns of Ixalan | LCI 261 | $0.19 |
Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.