The sign on the right says 'CARE'. I remember the standalone Toolkit II ROM announced itself as 'CARE/QJUMP Toolkit v2.xx'. So it could very well be a Toolkit II.
Jan is correct. This is most probably a Toolkit II ROM. It should give you the standard TK2 commands and might possibly have to be activated using the command "TK2_EXT".
Care did, however, re-sell their ROM cartridges to other software vendors, so it could basically be anything that fits in a ROM. I remember the Metacomco C compiler's ROM came in the same package.
I have two of these Care ROM Cartridges, one had the original Toolkit 2, but has lost its' Silver label. I have a Lightning Rom, but the original Rom supplied by Digital Precision had too slow a chip access time for use with the Miracle Hard Disk. So Miracle sent me a updated Eprom to alow Lightninh in the Rom Port to work the Miracle Hard Drive.
I have seen Fortran, QLC ROMs in the same package.
Probably best to see what the ROM Signon logo say on power up.
I have a Care cartridge I modified to map the rom cartridge to the OS ROMs and ROM Port area. Handy for testing with Minerva and Toolkit 2 on one rom. But there can be no OS Roms in the internal sockets other wise a clash.