This is an early version of the Spring Pan Kit. It combined the SD-1 with the SP-1 and the SK-1. This kit was originally played in a standing position. In later modifications it became a sit down kit. Its use was eventually discontinued around 2014 in favour of the more ergonomic SPK-2.
![](https://greglauzon.com/wp-content/uploads/2019/07/DSCN0522-e1563546515953-768x1024.jpg)