This is a No 7 Stanley Bailey jointer plane holder. Its printed as two pieces to save material as opposed to most that are a single piece, which wouldn't fit on the bed anyway. Additionally, having it in two pieces allows you to leave the iron set wherever you last used it for those (like me) that rarely ever adjust the depth of their iron. You can print in PLA, but I suggest keeping the infill settings where they are or the toe piece with the retention finger may break along the edge of the finger. However printing in ABS or PETG is preferred (infill setting can be reduced there). I have sucefully printed in both PLA and PETG.

I turned ironing on in the profile and I suggest keeping it to avoid scratching the sole of your plane over time.