Hi , the glass in the centre is more than likely from the Lauenstein glass house in Germany , second half of the 18th c, many of these but not all have a small lion engraved on the pontil area under the foot , your other two are sweetmeat glasses, the flared rim on the left glass would make it tricky to drink from and the right glass appears to have a folded rim for strength hopefully to avoid damage from the use of spoons to eat the sweetmeats, the gilding on the German glass should be left as it is , any restoration would have a downward affect on its value,, without handling to be certain of the age of the sweetmeats any valuation here could be way off.
cheers,
Peter.