Callipers - any idea what thes are?

Had a few issues with seized bolts etc.. Bought a new calliper but it's not the right one (standard golf mk1 gti from eurocar parts). 
The red calliper is the one that I'm trying to find out what it is and the silver. The new / wrong one (sorry to state the obvious). 
Any ideas would be really helpful!

Hi,

the red one looks like my '79 calipers, standard girling for small front brakes?

Robin

Looks like a G60 calliper to me. What size discs are you running/

Thanks Melteddrummer

They are looking like the Girling 54 - 256mm (Disc) with a spacing of 8cm (76mm if I could measure accurately!). Struggling to find one, so might just need get a Pagid Euro car parts refurbished.

Do you think its worth looking around for a replacement Girling? - I'm struggling to find one on tinternet.

Damon

if its got 256mm brakes and scirocco/audi carriers then you can use std mk2 16v calipers

edit: 88 onwards 16v, with 256mm brakes in case that wasnt obvious! also found on some mk3 golf, lower spec corrado and passat, several models of SEAT etc. just make sure they are for vented discs. some random mk3 got 256mm solid brakes and the calipers off those are no good