I'm, not sure really what you are after? There were a number of short versions over the years so it just depends on what time period. None were marked youth that I am aware of. They were referred to as "boy's rifles" but weren't actually marked as such. They were just branded with the model which would depend on the time period. Most common were the Canuck Jr. , Ace and Rabbit. These were actual boy's rifles and were very short/petite in overall build. The models such as the Cooey Special, 39, 55, 75 etc were not boy's rifles although you could find store branded versions such as "Ranger" with a little shorter barrels. The stocks were the same.