| Brand | Hewlett Packard |
|---|---|
| Model | HP 28s |
| Vintage | Yes |
Check the listing for details. HP-28S Hewlett-Packard Advanced Scientific Calculator Working And Tested. Condition: Used. Listed at 89.99 USD. this takes very small 1.5 V N batteries batteries not included. in working condition. has marks from use and play.
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