Dunno, but...
Here's some GB data for you...
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=294903342
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=292473046
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=293769306
This one has been listed multiple times with the highest bid at $315 with "Reserve Not Met" => http://www.gunbroker.com/Auction/ViewItem.aspx?Item=304734449
Same guy, multiple listings, high of $66 "RNM" => http://www.gunbroker.com/Auction/ViewItem.aspx?Item=304736311
So, my guess would be 'anywhere between $15 and $350'.
No need to thank me. 
Complete thread:
- Price check on an Ideal 38 special tong tool? - 
Paul, 
2012-09-04, 20:37 
- Dunno, but... - 
Hoot, 
2012-09-05, 09:48
- Thanks, Hoot... - 
Paul, 
2012-09-05, 16:53
- Thanks, Hoot... - Charles, 2012-09-06, 16:24
 
 
 - Thanks, Hoot... - 
Paul, 
2012-09-05, 16:53
 - Price check on an Ideal 38 special tong tool? - 
Charles, 
2012-09-06, 14:37
- Price check on an Ideal 38 special tong tool? - Charles, 2012-09-06, 14:40
 
 
 - Dunno, but... - 
Hoot, 
2012-09-05, 09:48