Sync My Photo Stream
A number of older photos on my Mac and iPhone 4S have disappeared from My Photo Stream, but are still on my iPad 3, there are 826 on the iPad, 369 on the phone and only 275 on the Mac.
New photos taken on the iDevices or imported from another camera are added to all three streams and photos deleted from one stream are deleted from the others.
How do I sync the old photos from the iPad with the phone and Mac so the streams are identical please?
iMac, OS X Mavericks (10.9)