ID help Wanted - is this a Haenel or a sporter 88 Commission rifle ? its a 7x57 cal

Hello,

I recently acquired another interesting rifle. I can't tell if this is a Haenel, or a Custom sporter built on an 88 Commission Rifle. Caliber is 7x57. Serial number on the bottom of the barrel and butt-plate with last 3 digits penciled in the barrel channel of the stock. No other markings except those I've shown.

Any help would be appreciated.

thanks