Do we think this is a goalkeepers top or similar to the jersey we played away to innsbruck in 1977. Any ideas?

Found these flyers recently in the house for The Celtic Story at the Pavilion.Letter was sent to all CSCs, we went en masse. Great show. I see Celtic the Musical is happening next year. #celticfc

I wonder if Big Roy still has the tele. Thats what he won as POTY from the Bellahouston June 1st CSC #CELTICFC back in the day