grandparents have given me two cases of old 45 rpms to get shot off, but looking to see if there good for the bin, or if theres any rare / hard to get ones amongst the cases....

no barcode, and cant find a site like music magpie to compare on etc

has anyone for any useful advice etc, wife says to find a local old school music shop who might be able to shed some light, which is quite good, but most likely a dying breed with internet / hmv etc etc

thanks in advance