This exception was originally thrown at this call stack:
    System.ThrowHelper.ThrowKeyNotFoundException()
    System.Collections.Generic.Dictionary<TKey, TValue>.this[TKey].get(TKey)
    Telerik.Windows.Documents.Core.PostScript.Data.PostScriptDictionary.GetElementAs<T>(string) in PostScriptDictionary.cs
    Telerik.Windows.Documents.Core.Fonts.Type1.Type1Format.Dictionaries.Type1Font.ReadGlyphData(string) in Type1Font.cs
    Telerik.Windows.Documents.Core.Fonts.Type1.Type1Format.Dictionaries.Type1Font.GetGlyphDataInternal(string) in Type1Font.cs