While some miniature armor and weapons were made during the Renaissance as toys for the well-to-do, or as curiosities, and more rarely as design models for actual equipment, the majority of preserved examples are of a much more recent date. Models such as these flourished during the 19th century revival of arms collecting.
The miniature on view here is an excellent example of this type of armor although there are some inconsistencies. A shield would not have been carried on horseback and the front section of the horse’s armor would have been too long for the horse to move in battle. The use of fringe on the horse’s armor is correct.