| Model | '86 | '87 | '88 | '89 | '90 | '91 | '92 | '93 | '94 | '95 | '96 | '97 | '98 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jem777GR | X | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| Jem777DY | _ | X | X | X | X | X | X | X | X | X | X | _ | _ |
| Jem77SP | _ | X | X | X | X | _ | _ | _ | _ | _ | _ | _ | _ |
| Jem77FP | _ | _ | X | X | X | X | X | X | X | X | X | X | X |
| Jem777VBK | _ | _ | X | X | X | X | X | _ | _ | _ | _ | _ | _ |
| Jem7RB | _ | _ | X | X | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| Jem777VDY | _ | _ | _ | X | X | X | _ | _ | _ | _ | _ | _ | _ |
| Jem7P | _ | _ | _ | X | X | X | _ | _ | _ | _ | _ | _ | _ |
| Jem7BFP | _ | _ | _ | _ | _ | X | X | X | X | _ | _ | _ | _ |
| Jem77GMC | _ | _ | _ | _ | _ | _ | X | X | _ | _ | _ | _ | _ |
| Jem77PMC | _ | _ | _ | _ | _ | _ | X | X | _ | _ | _ | _ | _ |
| Jem7VWH | _ | _ | _ | _ | _ | _ | _ | _ | X | X | X | X | X |
| Jem7BSB | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | X | X | X |
| Jem10th | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | X | _ | _ |
| Jem90HAM | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | X |
| UV7BK | _ | _ | _ | _ | X | X | X | X | X | _ | X | _ | _ |
| UV77MC | _ | _ | _ | _ | X | X | X | _ | _ | _ | _ | _ | _ |
| UV7PWH | _ | _ | _ | _ | X | X | X | _ | _ | _ | _ | _ | _ |
| UV777GR | _ | _ | _ | _ | _ | X | X | _ | _ | _ | _ | _ | _ |
| UV7BK-'97 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | X | _ |
| UV777BK | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ | X | X |
Thanks to Lawrence
Larsen for much of these dates, and Colter McCorkindale for
lending me his catalogs to corroborate them!