This is a collection of various Commodore 64 ROMS such as DolphinDOS, SpeedDOS Plus, Master ROM v3, DeadTest ROM, Memostar, TurboTrans SD2IEC22, etc...  See screenshot #2 for a list of the ROMs in the pack.

Check out PCBWay for a nice Kernal ROM adapter.

This Commodore 64 Kernal is a variation that supports disk functions mapped to the function keys, leaving all the tape and rs-232 functions in place.

A fellow Commodore user over on the Facebook Commodore 8-Bit Repair and Upgrades channel noticed that this version of the Dolphin DOS 3 ROM wasn't available anywhere on the net and kindly dumped an image.  If you are looking for a project and want to build a Dolphin DOS setup, check out this website to get started.