Pandora 925 Sterling Silver Lucky Horseshoe Dangle Charm

This retired sterling silver Pandora lucky horseshoe dangling charm has a lovely patina and some wear throughout. It is stamped '925 ALE' on one side of the main ring but has two small square stamps to the left of the 925 (which most similar charms do not have). The one looks like an anchor (?) and the other looks like an eagle with a tiny 925 below it. This charm was made pre-2011, which is when Pandora started stamping "S925" instead of just "925". I could not find the significance of the other stamps. Weight: 1.87g Dimensions: 16mm x 7mm x 5mm