The moldboard plow appears to be the model A300B02 6-1/2" plow for use with the Power-Ho. ....However, the hitch has been modified to use with the Versamatic or RAM, so it will not mount to the Power-Ho again.
Your pic of the front rotary mower does not show enough of the hitch to identify it. ....There is a tag on the rotary mower which should have the model number stamped into it. ....This will help identify the tractors it will fit. ...It may be a model F434-02 mower attachment for the VersaMatic, or a model HD434 or model 21434, both of which fit the R-A-M.
The reel mower for the Power-Ho is most likely a model A401B (24" cut width) or a model A402B (30" cut width).
The Ride-A-Matic snow plow is most likely a model #21531. ....The mounting brackets are missing, or they are still attached to the tractor.
The R-A-M sickle bar is most likely a model 21310 (24" cut) or a model 21311 (42" cut).
There is much info in the Bolens Manuals Forum which applies to these attachments.
That hitch in pic #1 is taxing my brain! ....I have seen that piece in the past, but can not place it. ....Possibly for a seeder attachment?