German LW Rank Litze 'Der Spiess' Sleeve

In a very good condition and hard to find Sleeve Litze for the German Luftwaffe Tunic for the Rank of Der Spiess.The silver litze comes with a red center line inside indicating use by Artillery/ Flak members.The litze comes in a length of 40 cm each.The litze is the on the left on the roll.