Steiff Giraffe on Wheels

I have a huge collection of Antique Steiff and toys on wheels, I purchased this Giraffe from England years ago .It stands 51" tall, I know the dealer bought it in the South of France at a street market........ I can't find another one like it and i have looked and looked, anyone know the value and date?????????? I have even contacted a Antique dealer who knows her Steiff and they had no idea accept(maybe a private commissioned piece).....it is made of mohair, straw stuffed, iron carriage ,rubber wheels,glass eyes and original leather straps,reins.........................Help