I can't answer for all but....
1997 50p, worth 50p
1997 10p, worth 10p
1997, Gibraltar 50p, worth 50p
1997 Balliwick of Guensey 50p, flower design.
1997 Balliwick of Jersey 50p, Ruins Design.
1997 Isle of Man 50p, Motorcycle design.
1997 Balliwick of Jersey £1, quite a rare one over there too, apparently, - Ship design.
1997 Ascension Island 1p, Fish design.
All worth face value, sure they are not that common in the UK but I think nothing here would go for much more. You might get a little more on
ebay for a few of these if someone is really interested, but I doubt it.
1997 Spain 50 Ptas, pre Euro currency. Probably worth about 20p
1997 Spain 100 Ptas. Worth about 40p
The 50 ptas coin is Juan de Herrera, some of these 50 ptas coins are worth more than others, but I think this one is not worth that much more than face, which is 20p UK.
The 100 ptas coin is the royal theatre and was quite common in circulation, so was worth 100 ptas , which was about 40p.
1997 Ecuador, 500 'Quinientos Sucres' I don't know about this one.