Crankshaft stroke measurement

I recntly bought a crank that belonged to a mate that sadly passed away last year. It came in a Grand Tourisimo box and says 60/110 on the the lable. However, it doesnt have the characteristid plastic stuffers. It does apear to have a 110mm rod but measurony from the centre of the crank to the centre of the pin looks to be 29mm which to me indicates 58mm stroke? I only have a vernier and ruler for measurement so could be out but was mainly wondering if the stroke increase is achieved with different webs or an offset pin? the pin measures 22mm with the vernier. any thoughts gratefuly recieved 
