Any Japanese baseball experts here? Question on photo...

I couldn't resist buying this photo of a Tokyo Giant player just so I could solve the mystery of who he is and what the timeframe of the pic is. I'm curious if the photo is signed, too.

Can anyone provide some insight? I bought this today at an antiques show at the Portland (OR) Expo Ctr and came close to asking a couple dealers of Japanese items to interpret for me, but they were too busy...

Can anyone provide some insight? I bought this today at an antiques show at the Portland (OR) Expo Ctr and came close to asking a couple dealers of Japanese items to interpret for me, but they were too busy...
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Photos That Were Used On Baseball Cards
Awesome find!
http://www.google.com/imgres?imgurl=http://www.prestigecollectiblesauction.com/site/images_items/Item_1003_1.jpg&imgrefurl=http://www.baseball-fever.com/showthread.php?25550-Early-Japanese-Baseball./page3&usg=__nxQF-2SQNevqveIM8T5uTde_e5k=&h=418&w=600&sz=74&hl=en&start=19&zoom=1&itbs=1&tbnid=or4I26ge-VT6LM:&tbnh=94&tbnw=135&prev=/images?q=Shigeo+Nagashima+card&start=18&hl=en&sa=N&rls=com.microsoft:*&ndsp=18&tbs=isch:1&ei=E_N0TZDeEMSqlAfX_K3TDQ
You all are amazing.
Thanks!