The glove in Thor (top right) was a right handed glove, whilst the one scene in the end credits (bottom) was left handed. This matches the one we saw in Infinity War teaser (top right)
Avengers Age of Ultron Thanos Glove Comparison
The glove in Thor (top right) was a right handed glove, whilst the one scene in the end credits (bottom) was left handed. This matches the one we saw in Infinity War teaser (top right)
The Insightful Panda 
