MACBOOK PRO 5,2 Can't find Mac partition on utility to recover Mac Os

[macsoftbox]

so here is the is the situation with the Macbook Pro 5,2 i got from a client who has windows 7 installed but there is no bootcamp program to go back to Mac Os , and with the help of option/Alt key i can't seem to find mac os partition on the recovery utility , tried to use Transmac to install Mac Os on a USB drive but it won't show up on while booting to recovery , tried so many different button commands but nothing happens except the Option/Alt Key. i attached a pic of the utility where there is no MAc os partition, nor the usb drive.
hope someone can help figuring out how to go back to Mac OS or Reinstall it once again from scratch.

Thanks in advance.

 

[macsoftbox]

66 views but no one could help ? thank you all

 

[Snowlover]

I think your client erased the hard drive when installing win 7, so you have no Mac recovery partition .

The USB should show up when booting holding option/alt key. Perhaps there is a problem with the USB drive, or the installation? Maybe try again with another USB drive.