Iscar 32x150mm 1.26" Parting Cut-Off Blade SGIH 32-3 GTN GTR GTL Carbide Insert
I believe these take any GTN, GTR, GTL cut-off insert size range 3. Holder is 1.26 (32mm) high and .063" (1.6mm) thick.
Please take a look at all pictures to judge the condition for yourself.