According to the Internet, the "10 Francs" at the top-left appears to be an OLD 10 Central African CFA francs (XAF). You wouldn't believe how long it took me to find another picture of these. The new design was introduced in 2006 and Wikipedia doesn't have any suggestion of the old one.
The one right below it is almost certainly a Qatari 25 dirham coin, although it's kind of hard to tell because the obverse of all the Qatari coins is the same. It might be a 5 dirham coin, but I have no idea where Marjorie would have got one of those so I'm sticking with 25. (This is the only one I guessed before looking it up, although if I'd thought about it for a while I could probably have managed 2HKD as well.)
The Turkish coin is probably a 10 (new) kuruş coin from 2005-2008; the design was changed for 2009. If it's old lira instead, it will say a silly large number on the back (100k lire, probably), but it's still only worth six cents.
As far as value goes, the 1GBP coin is almost certainly the most valuable of those mentioned so far, at US$1.44, followed by the 20 Czech koruny at about US$0.96. The least is probably 10 XAF at a little under two cents, although if the Qatari coin is only 5 dirhams rather than 25, it's worth less at just over a penny.
There are still some unidentified coins though; I'm particularly interested in the big brass-and-nickel one labeled in Arabic on the right. I'm sure if I remembered how to read Arabic I could figure it out!
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The one right below it is almost certainly a Qatari 25 dirham coin, although it's kind of hard to tell because the obverse of all the Qatari coins is the same. It might be a 5 dirham coin, but I have no idea where Marjorie would have got one of those so I'm sticking with 25. (This is the only one I guessed before looking it up, although if I'd thought about it for a while I could probably have managed 2HKD as well.)
The Turkish coin is probably a 10 (new) kuruş coin from 2005-2008; the design was changed for 2009. If it's old lira instead, it will say a silly large number on the back (100k lire, probably), but it's still only worth six cents.
As far as value goes, the 1GBP coin is almost certainly the most valuable of those mentioned so far, at US$1.44, followed by the 20 Czech koruny at about US$0.96. The least is probably 10 XAF at a little under two cents, although if the Qatari coin is only 5 dirhams rather than 25, it's worth less at just over a penny.
There are still some unidentified coins though; I'm particularly interested in the big brass-and-nickel one labeled in Arabic on the right. I'm sure if I remembered how to read Arabic I could figure it out!