No.1 Mk3, SMLE & SHT. LE III

I have these two rifles both 303-25 (6.5 Straymoor) sporters, they are both No.1’s or at least they seem that way to me. One has SHT LE (1920) & the other is an SMLE (1916), so what’s the difference between the two?

Country of origin and 4 years age. They are both stamped Sht LE III*. The “H” on the Enfield is not well struck.