Hi - the bowl showing here certainly has features found on Skrdlovice designs - the pulled side lobes and heavy irregular segmented rim - and the colour is also seen on their glass. If it is the date you suggest, Mark Hill comments in his booklet 'Hi Sklo Lo Sklo' - "Attributing designs from the 1950s to designers is hard due to the current lack of information, and the fact that, at this point Czechoslovak Glass Review did not list designer's names against photographs." Did the old couple say definitely these pieces had been wedding gifts?
If you look on line you should see plenty of Skrdlovice pieces that show similar characteristics, though this doesn't automatically mean yours are the same, but fingers crossed someone may recognize this exact design.