Loh On Nin
IMO, that would be some person trying to do aiki-age without the direct instructions from the sagawa dojo. It is also similar to the way yoshinkan aikidokas do the suwariwaza kokyo ho when your uke pushes into you. The end bit differs as yoshinkan aikido always end with toes up and whole body unit moved.
The gentlemen in the photo are from the Sagawa dojo. I think the fellow taking ukemi is actually Mr. Takahashi one of the three head teachers at the Sagawa dojo today, along with Prof. Kimura and one other (forgot his name). See a post I made over on E-budo for a link with a lot more information: http://www.e-budo.com/forum/showpost...7&postcount=44