Mk1 jetta wing mirror!!!!!

Hi my dad has recently been and bought a Jetta coupe we have just registered it in the U.K. It's a Lithuanian import, we put series 1 flag mirrors on it for the mot and it passed with no advisorys great, unfortunately it only came with one mirror witch is different to any I've seen it's like a bigger version of the series 1 flag mirror  more rectangular in shape and bigger than a series two gti mirror I'll post a pic so people can see my dad would like to source these mirrors we are guessing they are og jetta ones but I can't seem to find them for love nor money here's some pics thanks In advance 

Not seem them before,.
Is there holes/fixing in the passengers door to fit a new mirror?

For easy could you not fit 2 Mk1 golf mirrors then they would be a matching pair, the holes/base on your mirror looks the same as Mk1 golf ones?

Yea the bottom part of the mirror is the same as or simalar to a golf flag mirror the passenger door has the holes from factory for the mirror we would like to try and source the og ones if that is the og one

The mirror we have is stamped vw on the bottom but no part no number annoying 

Part number etc.
http://www.oemepc.com/vw/part_single/catalog/vw/markt/RDW/modell/JE/year/1979/drive_standart/27/hg_ug/857/subcategory/118000/part_id/3686986/lang/e#sec_1

Unfortunately it doesn't have one 

Is 171857501 or 171857501 01C or 171857502D or 171857502D 01C the same mirror as Mk1 golf?